Chicago and Turabian: The Same But Different
Turabian is essentially a simplified version of Chicago Style. Chicago/Turabian is a good choice for a general, all-purpose citation guide.
"Turabian" takes its name from Kate Turabian, the dissertation secretary at the University of Chicago for over 30 years who developed a guide for students and researchers writing papers, theses, and dissertations. This guide has evolved and has been revised many times, and, while based on the University of Chicago Press's Manual of Style, simplifies and departs from it in some aspects. Overall, "Turabian" synthesizes the rules most important for students' papers and other scholarly research not intended for publication, and omits some of the publishing details and options that "Chicago" provides, and presents some of the same material in a clearer manner.