Always refer to The Chicago Manual of Style, 17th edition for authorized examples of citations.
Some of the citations in this guide are taken from The Chicago Manual; others are created by librarians.
Chicago Style citations include certain information to direct the reader to the original source. The Chicago Manual of Style, 17th edition describes two citation styles used for source citations. The first style uses notes, either footnotes or endnotes, within the text as well as a bibliography at the end of the paper. The second style uses parenthetical author date citations within the text as well as a bibliography at the end of the paper (The Chicago Manual of Style, 17th ed. 2017, 743).
Consult with your professor if you are unsure which citation style to use for your research paper.
The Chicago Manual of Style, 17th Edition by 
A Manual for Writers of Research Papers, Theses, and Dissertations, Ninth Edition by