by William J. Keefe ... [and others]
The Dorsey Press, 1983
Buku Teks
Padover, Saul K. (Saul Kussiel), author
Frederick A. Praeger, 1963
Buku Teks
Herring, E. Pendleton, author
Norton, 1966
Buku Teks
Burns, James McGregor, author
Prentice-Hall, 1963
Buku Teks
Eisenstadt, Todd A., author
Camberidge University Press , 2004
Buku Teks