Kelly, David, author
Hollis & Caster , 1952
Buku Teks
Dizard, Wilson, Jr., author
Praeger, 2001
Buku Teks
Nicolson, Harold, author
Oxford, 1969
Buku Teks
Kissinger, Henry, 1923-, author
Schuter, 1994
Buku Teks
Ferrell, Robert H., author
W.W. Norton, 1959
Buku Teks