1
by French, Laurence
Published 1981
Appalachian Consortium Press

2
by Archer, Patience Loader
Published 2006
Utah State University Press

3
by Carmack, Effie Marquess
Published 1999
Utah State University Press

4
by Everest, Allan S.
Published 1976
Syracuse University Press

5

6
by Dobbins, James
Published 2008
RAND National Security Research Division