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It specifies numbering order, superscript placement outside punctuation, and how to list authors for one, two, multiple, or many contributors. The guide also defines citation punctuation and ordering, and offers template formats for books and chapters, edited works, journal articles, websites, and conference papers, including required elements such as authors, titles, editors, publication details, and page ranges.",{"@graph":69,"@context":123},[70,84,106],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":40,"@type":76,"position":81},"https://docshare.wps.com/document/research-report/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/acs-reference-guide-citation-and-reference-list-formatting/332667/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/acs-reference-guide-citation-and-reference-list-formatting/332667.png","ImageObject",300,407,{"name":92,"@type":93},"Marry","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-30","2026-09-21",true,{"@type":102,"interactionType":103,"userInteractionCount":105},"InteractionCounter",{"@type":104},"ViewAction",21,{"@type":107,"mainEntity":108},"FAQPage",[109,115,119],{"name":110,"@type":111,"acceptedAnswer":112},"How should in-text references be numbered in ACS style?","Question",{"text":113,"@type":114},"References should be numbered and appear in the order they appear in the text. Superscript numbers are used and appear outside the punctuation.","Answer",{"name":116,"@type":111,"acceptedAnswer":117},"How are authors listed when there are two or more authors?",{"text":118,"@type":114},"For two authors, give both names joined by “and”. For more than two authors, list only the first name followed by “et al.”; for multiple authors, use the principal author’s name followed by “and co-workers” or “and colleagues”.",{"name":120,"@type":111,"acceptedAnswer":121},"What is the required structure for journal article references?",{"text":122,"@type":114},"Journal articles follow an author list, a journal abbreviation, publication year (bold), italicized journal abbreviation and volume, and page ranges. Article titles are not essential, and journal abbreviations have limited punctuation rules.","https://schema.org",{"og:url":83,"og:type":125,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":127,"canonical":83},"index,follow",{"doc_id":129,"site_id":62},332667,1790131265,{"code":4,"msg":5,"data":132},{"doc_id":129,"user_id":133,"nickname":92,"user_avatar":134,"doc_module":4,"category_id":39,"category_name":40,"doc_title":65,"doc_description":67,"doc_content":135,"file_id":136,"file_url":137,"file_type":138,"file_size":139,"view_count":105,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":8,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":144,"read_time":81,"preview_page_count":4},5909892079670,"https://ap-avatar.wpscdn.com/davatar_276721f389ce27ea32af1340a28f341c","| ACS Reference Guide |  |  |  |\n| --- | --- | --- | --- |\n| Citation In-text\u003Cbr>The references should be numbered and appear in the order they appear in the text |  |  |  |\n| No. | Requirement |  | Sample |\n| 1 | Use superscript numbers appear outside the punctuation |  | Oscillation in the reaction of benzaldehyde with oxygen was reported previously.3 |\n| 2 | two authors, give both names joined by the word “and”. |  | Allison and Perez12 |\n| 3 | more than two authors, give only the first name listed, followed by “et al.” |  | Johnson et al.12 |\n| 4 | multiple authors, use the principal author’s name followed by “and co-workers”or “and colleagues”. |  | Pauling and co-workers10, 11 |\n| 5 | citing more than one reference, list the numbers in ascending order\u003Cbr>and separate them by commas |  | in the literature2, 5,8\u003Cbr>were reported3–5,10 |\n| Reference List\u003Cbr>In lists, references always end with a period. |  |  |  |\n| 1 | Books & Book Chapters | Authored work\u003Cbr>Author, A. A.; Author, B. B. Title: Subtitle , Edition (if not the first); Series; Publisher: Place of publication, Year; Vol. (if a multivolume work), pp page number(s) (if appropriate) . | [1] Anastas, P. T.; Warner, J. C. Green Chemistry: Theory and Practice ;\u003Cbr>Oxford University Press: Oxford, 1998. |\n|  |  | Edited work\u003Cbr>Editor, A. A., Editor, B. B., Eds. Title: Subtitle , Edition (if not the first); Series; Publisher: Place of publication, Year; Vol. (if a multivolume work), pp page number(s) (if appropriate) | [2] Asmus, K. D. Recent Aspects of Thiyl and Perthiyl Free Radical Chemistry.\u003Cbr>In Active Oxygens, Lipid Peroxides, and Antioxidants ; Yagi K., Ed.; Japan\u003Cbr>Scientific Societies: Tokyo; CRC: Boca Raton, FL, 1993; pp 57-67. |\n| 3 | Journal Articles | Author, A. A.; Author, B. B. Journal Abbreviation . Publication Year(bold), Volume , Page-page.\u003Cbr>Article titles are not essential\u003Cbr>Journal abbreviation and volume are italicized.\u003Cbr>Year of publication is bolded.\u003Cbr>No punctuation in journal abbreviations except periods. No conjunctions, articles, or prepositions in journal abbreviations. No comma or semicolon before or after journal titles. | [3] Deno, N. C.; Richey, H. G.; Liu, J. S.; Lincoln, D. N.; Turner, J. O. J. Amer. Chem. Soc .1965, 87, 4533-4538.\u003Cbr>[4] Borman, S. Sucrose Synthesis Sets A Record. Chem. Eng. News 1990, 78, 52. |\n| 4 | Websites Information | Use the title found on the Web site itself; add the words\u003Cbr>“Home Page”for clarification when needed.\u003Cbr>Author (if any) . Title of Site. URL (accessed Month Day, Year), other identifying information (if any) . | [5] ACS Publications Division Home Page. [http://pubs.acs.org](http://pubs.acs.org) (accessed Nov 7,\u003Cbr>2004) .\u003Cbr>[6] Chemical Abstracts Service. STN on the Web. [http://stnweb.cas.org](http://stnweb.cas.org) (accessed Nov 7, 2004).\u003Cbr>[7] International Union of Pure and Applied Chemistry Home Page. [http://www](http://www). [iupac.org/dhtml_home.html](iupac.org/dhtml_home.html) (accessed April 24, 2005). |\n| 5 | Conference Papers | Full citations of published abstracts and proceedings.\u003Cbr>The format resembles that of a book citation. | [8] Garrone, E.; Ugliengo, P. In Structure and Reactivity of Surfaces , Proceedings of the European Conference, Trieste, Italy, Sept 13–20, 1988; Zecchina, A., Cost, G., Morterra, C., Eds.; Elsevier: Amsterdam, 1988. |\n| Quick Guide from Universal Wiser Publisher |  |  |  |","cbCailOLtZfYWzKW","https://ap.wps.com/l/cbCailOLtZfYWzKW","pdf",90185,"English","# Citation In-text Rules\n## Numbering and Superscript Placement\n## Author Listing for Multiple Authors\n## Ordering and Punctuation in Citations\n# Reference List Formats\n## Books and Book Chapters\n## Edited Work\n## Journal Articles\n## Websites Information\n## Conference Papers","[{\"question\":\"How should in-text references be numbered in ACS style?\",\"answer\":\"References should be numbered and appear in the order they appear in the text. Superscript numbers are used and appear outside the punctuation.\"},{\"question\":\"How are authors listed when there are two or more authors?\",\"answer\":\"For two authors, give both names joined by “and”. For more than two authors, list only the first name followed by “et al.”; for multiple authors, use the principal author’s name followed by “and co-workers” or “and colleagues”.\"},{\"question\":\"What is the required structure for journal article references?\",\"answer\":\"Journal articles follow an author list, a journal abbreviation, publication year (bold), italicized journal abbreviation and volume, and page ranges. Article titles are not essential, and journal abbreviations have limited punctuation rules.\"}]","ACS Reference Guide - Citation and Reference List Formatting | PDF",1789999027]