Hitch, Charles J., author
Harvard University Press, 1961
Buku Teks
Westview Press, 1986
Buku Teks
Kennan, George F., 1904-, author
Pantheon Books, 1983
Buku Teks
The John Hopkins University Press, 1979
Buku Teks
Camilleri, Joseph, author
Macmillan of Australia, 1987
Buku Teks