Pillar, Paul R.
Princeton University Press , 1983
Buku Teks
Hoover, Herbert, 1874-1964, author
Doubleday, Dorand, 1942
Buku Teks
Wadsworth, James J
Frederick A. Praeger, 1962
Buku Teks
edited by Charles Webel and Jorgen Johansen
Routledge, 2012
Buku Teks
Boutros-Ghali, Boutros, 1922-, author
United Nations, 1992
Buku Teks