Cruz, Hernan Santa
United Nations, 1971
Buku Teks
Count, Earl Wendel
Henry Schuman, 1950
Buku Teks
Matthews, Basil
Edinburgh House Press, 1927
Buku Teks
Montagu, Ashley, 1905-1999, author
The World Publishing, 1964
Buku Teks
Benedict, Ruth, author
The Viking Press, 1947
Buku Teks