Janet Marstine, editor
Blackwell Publishing, 2010
Buku Teks
Burcaw, G. Ellis, author
American Association for State and Local History, 1983
Buku Teks
Dean, David, author
Routledge, 1996
Buku Teks
Bennett, Tony, author
Routledge, 1995
Buku Teks
Bennet, Tony, author
Routledge, 1997
Buku Teks