Q. Is there a tutorial on Turabian style?
Try this quick guide from the University of Chicago Press: http://www.press.uchicago.edu/books/turabian/turabian_citationguide.html.
EasyBib also has a joint Chicago/Turabian guide at: http://content.easybib.com/citation-guides/chicago-turabian/
Waterfield Library has the most recent editons of the style guides for Chicago (16th) and Turabaian (8th) available at the Information Desk for you to use in the library.