Buck, John Lossing, 1890-1975
Frederick A. Praeger , 1966
Buku Teks
Friedmann, Wolfgang, 1907-1972
Stevens & Sons, 1947
Buku Teks
Schwarz, Bienstock
Cornell University Press, 1948
Buku Teks
Beishline, John Robert
Prentice-Hall, 1957
Buku Teks
Hammond, R. J. (Richard James), 1911-
Stanford University Press, 1954
Buku Teks