Correa, Charles, author
Thames & Hudson, 1996
Buku Teks
Darwin, Charles Robert
New York Henry Schuman 1950
Buku Teks
Portnoy, Ethel
Meulenhoff, 1998
Buku Teks
edited by Leslie A. Fiedler
Thomas Y. Crowell, 1958
Buku Teks
Hyde, Simeon
Addison-Wesley Publishing Company, Inc., 1967
Buku Teks