Use Chicago style in one of two systems: Notes and Bibliography or Author-Date
Choose the system required by your instructor, publisher, or assignment
In Notes and Bibliography, use superscript numbers in the text for citations
In Notes and Bibliography, put full source details in the first footnote or endnote
In Notes and Bibliography, shorten later citations with a shortened note
In Notes and Bibliography, include a bibliography at the end of the paper
In Author-Date, use parenthetical in-text citations with author last name and year
In Author-Date, include page numbers in the in-text citation when quoting or citing specific information
In Author-Date, include a reference list at the end of the paper
Format book citations with author, title, place of publication, publisher, and year in Notes and Bibliography
Format book citations with author, year, title, and publisher in Author-Date
Format journal article citations with author, article title, journal title, volume, issue, year, and page range
Format website citations with author or organization, page title, site name, publication date, and URL
Italicize book titles and journal titles
Put article titles and webpage titles in quotation marks
Use sentence case for article and webpage titles
Use title case for book and journal titles
Indent bibliography and reference list entries with a hanging indent
Follow the required punctuation and capitalization exactly
Check the latest Chicago Manual of Style guidelines for specific source types