Hardgrave, Robert L., author
Harcourt College, 2000
Buku Teks
Magstadt, Thomas M., author
Thomson wadsworth, 2005
Buku Teks
Morgenthau, Hans J., author
Alfred A. Knopf, 1950
Buku Teks
Morgenthau, Hans J., author
Alfred A. Knopf, 1961
Buku Teks
Morgenthau, Hans J., author
Knopf , 1954
Buku Teks