2
by Holt, Michael F.
Published 2005
BOOK
3
by Kennedy, Roger G.
Published 2003
BOOK
5
by Van Atta, John Robert,
Published 2014
BOOK
7
Published 2010
Available via EBSCO e-books
8
Published 2012
Available via EBSCO e-books
12
by Rayback, Joseph G.
Published 1970
Available via JSTOR