The Turabian writing style is taken from Kate L. Turabian's Manual for Writers of Research papers, Theses, and Dissertations. In this book there are two basic documentation systems presented, the Notes-Biblography style and the Author-Date style. The Notes-Bibliography style is also called Chicago/Turabian: Humanities style. You can find it in chapters 16 and 17 of the Turabian manual. Chapters 18 and 19 give examples for the Author-Date style.
Notes-Bibliography style is the Turabian style used by most Liberty courses. This style presents citation information in footnotes and in a bibliography.
Different departments may have slight variations to the Turabian format. Always check with your instructor to see their requirements for your assignments.