Chicago Style Citations primarily uses Footnotes or Endnotes. Notes are indicated by number within the text and a corresponding citation is located either at the bottom of the page (footnotes) or at the end of the document (endnotes).
At the end of your paper, you will create a bibliography. A bibliography is an alphabetical list of all sources you used in your paper. A bibliography is formatted differently than a note.
William J. Novak, “The Myth of the Weak in the American State,” American Historical Review 113, no. 3 (June 2008): 758, https://doi.org/10.1086/ahr.113.3.752.
Novak, Willikam J. “The Myth of the Weak in the American State.” American Historical Review 113, no. 3 (June 2008): 758-72. https://doi.org/10.1086/ahr.113.3.752.*
*Remember to use a hanging indent in all bibliography entries
Less commonly used is the Author-Date Style. In this style, each reference list entry is accompanied by an example of a corresponding in-text citation.
Journal Article example:
LaSalle, Peter. 2017. "Conundrum: A Story about Reading." New England Review 38 (1): 95-109. https://doi.org/10.1086/690235.
Satterfield, Susan. 2016. "Livy and the Pax Deum." Classical Philology 111, no. 2 (April): 165-76.
(LaSalle 2017, 95)
(Satterfield 2016, 170)
For more in depth examples see the Chicago Style Author-Date: Sample Citations or Chapter 15 in The Chicago Manual of Style.
Purdue Owl provides instructions and a example on formatting Chicago Style: papers: https://owl.purdue.edu/owl/research_and_citation/chicago_manual_17th_edition/general_format.html