Royal Institute of International Affairs, 1954
Buku Teks
edited by Peter Mansfield
Oxford University Press, 1973]
Buku Teks
editor, Avraham Sela
Continuum, 2002
Buku Referensi
Polk, William R. (William Roe), 1929-
St. Martin's Press, 1979
Buku Teks
Bullard, Reader
Oxford university Press, 1958
Buku Teks