What is Chicago/Turabian Style?
Based on Kate L. Turabian’s Manual for Writers of Research Papers, Theses, and Dissertations, Turabian citation style has two versions, the humanities style (also called “notes-bibliography”) and the author-date style for social science and science. You’ll be using the humanities (notes-bibliography) style. These styles are essentially the same as those presented in The Chicago Manual of Style with slight modifications for the needs of student writers.
Notes refer to the exact location of a quote, idea, or piece of data you have obtained from a source. Each note corresponds to a raised (superscript) number in the text. They may be inserted as footnotes or endnotes, depending on your instructor’s preference.
The bibliography is used to document all the works you've consulted in your research.
It depends on what your instructor requires, but in general, endnotes are easier.