Von der Mehden, Fred R., author
Prentice-Hall, 1969
Buku Teks
Von der Mehden, Fred R., author
Prentice-Hall, 1964
Buku Teks
Gamer, Robert E., author
Allyn and Bacon, 1976
Buku Teks
edited and with Introductions by Paul E. Sigmund
Frederick A. Praeger, 1967
Buku Teks
Morgenthau, Hans J., author
McGraw-Hill, 1993
Buku Teks