Friedman, Irving S., author
Institute of Pasific Relations, 1940
Buku Teks
Royal Institute of International Affairs , 1939
Buku Teks
Jansen, Marius B., author
Rand Mc.Nally College Publishing , 1975
Buku Teks
Newman, Robert P.
Macmillan, 1961
Buku Teks
Department of State, 1949
Buku Teks