Herskovits, Melville J. (Melville Jean), 1895-1963
Alfred A. Knopf, 1967
Buku Teks
Smith, Homer William, 1895-1962
Thirty Bedford Square, 1953
Buku Teks
Ulam, Adam Bruno
Beacon Press, 1973
Buku Teks
Thorndike, Edward Lee
Harvard University Press, 1943
Buku Teks
Hamilton, Alexander
New York The Liberal Arts Press 1957
Buku Teks