The Chicago citation style is used by History and some Social Science disciplines.
At the library: The Chicago Manual of Style
Online: The Chicago Manual of Style
Chicago style format for citing an article in journal:
Chicago style format for citing a book:
Chicago style format for citing a web page:
Heck, Richard Kimberly. “About the Philosophical Gourmet Report.” Last modified August 5, 2016. http://rgheck.frege.org/philosophy/aboutpgr.php.