Brzezinski, Zbigniev K.
Frederick A. Praeger, 1962
Buku Teks
Schuman, Frederick L.
Alfred A. Knopf, 1949
Buku Teks
editor, Amy Gutmann, Dennis Thompson
Thomson wadsworth, 2006
Buku Teks
Smith, Christopher E.
Nelson-Hall Publishers, 1992
Buku Teks
Norman Miller, editor
Routledge, 2009
Buku Teks