Chapters in the Regional History Series (RHS) books should include endnotes. The note format for a book with a single author looks like this:
1. Kate L. Turabian, A Manual for Writers of Research Papers, Theses, and Dissertations: Chicago Style for Students and Researchers, 7th Edition (Chicago: University of Chicago Press, 2007), 160-215.
Web sites should be used sparingly as sources for Regional History Series books. A printed source is preferred when possible. The note format for a web site looks like this:
2. University of Chicago Press, "Turabian Quick Guide," UCP Turabian Citation Guide, http://www.press.uchicago.edu/books/turabian/turabian_citationguide.html (accessed July 23, 2012).
Both of the above cited sources contain most of the answers for RHS style questions. Use the notes-bibliography style (identified as "N:"). RHS chapters do not include bibliographies, however a Selected Bibliography is included near the back of each book.
Here is a link to a good list of examples compiled by the Coates Library at Trinity University: http://lib.trinity.edu/research/citing/Turabian_Notes_Citations.pdf
For second and subsiquent citations in the endnotes RHS style requires the author-title form:
1. Turabian, A Manual for Writers, 154.