The examples below are just the start. Use the specific manuals listed or the Purdue OWL guides, all listed on the "How to Cite" tab; work with your professor, a Weingarten learning specialist, or a librarian for additional help with citation. Penn Libraries has subject librarians for all departments, schools, and centers. You can find your subject librarian listed in alphabetical order by subject.
Chicago style allows for footnotes or in text citation. Chicago calls their "in text citation" style: author-date.
An example using both parenthetical author-date and author referenced in sentence and parenthetical date.
Chicago Manual of Style guidelines for online resources include URL/name of platform or DOI as part of the citation. The Chicago style does not require date of access, unless you are citing an online item that does not have a date of publication. Many webpages do provide a date for the latest update.
Note: If your article or book has more than four authors, you will only note the first one in your in-text citation: (last name et al. 2012). Chicago Manual of Style states that in a reference entry you should include the first ten authors and then finish the list with "et al." (likely only in STEM publications, which often include large numbers of authors).
The Chicago Manual of Style is intended for use by authors, from students to published scholars to editors and publishers. The manual strives to provide an example and guidance for most eventualities in two distinct styles (author-date and full note). Surprisingly, the online resource is user friendly. It has an extremely detailed table of contents, a useful full text search, a running list of sections on the right hand column, and cross references galore.
While you can probably answer most of your questions from the "Citation Quick Guide," don't be reluctant to dive further in as you have questions about something you are adding. And, remember, you can always confer with your professor and with your librarian.
