AMA referencing is commonly used in medical writing. But what do you do when you can\u2019t find the author of a source? Or when a source has no date of publication or page numbers? In this post, we look at your options for handling missing information in AMA referencing (11th edition).\r\nSources with No Author\r\nWhen a source is missing a named author, you can omit this detail. Instead of an author\u2019s name, the reference will thus begin with the source title:\r\n1. 7 Science-Based Health Benefits of Drinking Enough Water. Healthline. https:\/\/anon.healthline.com\/are-you-drinking-enough-water. Accessed April 29, 2019.\r\nWebsites are the sources most likely to not name an author. However, most sources will name an author somewhere, so remember to check carefully.\r\nSources with No Page Numbers\r\nIn AMA referencing, when quoting a source, you should include page numbers in citations. However, if a source has no page numbers (e.g., a website or certain ebooks), you can just give the citation number.\r\n\r\nMeanwhile, in the reference list, you should include the full page range for any source that is part of a larger container volume (e.g., chapter in a book, article in a journal). Again, though, if a source lacks page numbers, you can leave this detail out. And if a source uses a different style of numbering (e.g., paragraph or chapter numbers), you can use this in place of regular page numbers.\r\nSources with No Date of Publication\r\nWhen a source is missing a publication date, use "date unknown" in its place:\r\n2. Francis T. Treatment of Allergies: A Guide to Best Practice. New York, NY: PI Publications; date unknown.\r\nHowever, make sure to include a date of access for all online sources.\r\nBooks with No Known Publisher\r\nWhen you can't find the publisher for a print source, write "Publisher unknown" in place of the place of publication and publisher. For instance, if we did not know the publisher for a book, we would list it as follows:\r\n2. Francis T. Treatment of Allergies: A Guide to Best Practice. Publisher unknown; 2018.\r\nAs elsewhere, though, check carefully before omitting this detail.\r\nWhat to Do with Missing Information in AMA Referencing\r\nAMA referencing is quite flexible when it comes to missing information, often simply allowing you to omit it. The key is making sure you provide enough detail for the reader to find the source cited.\r\n\r\nTo make sure your references are clear and consistent, we suggest having your work proofread. Proofed even offers a specialized AMA proofreading service, so why not give it a try today?