Herskovits, Melville J. (Melville Jean), 1895-1963
Alfred A. Knopf, 1967
Buku Teks
Taylor, A.E. (Alfred Edward), 1869-1945
Doubleday, 1952
Buku Teks
Thorndike, Edward Lee
Harvard University Press, 1943
Buku Teks
Ulam, Adam Bruno
Beacon Press, 1973
Buku Teks SO
Montagu, Ashley, 1905-1999
World Publishing, 1957
Buku Teks