Lieuwen, Edwin
Frederick A Praeger, 1960
Buku Teks
Stuart, Graham H. (Graham Henry), 1887-, author
Appleton-Century-Crofts, 1955
Buku Teks
Porter, Charles O. (Charles Orlando), 1919-2006, author
Macmillan, 1961
Buku Teks
Joseph Maier, Richard W.Weatherhead
F. A. Praeger, 1964
Buku Teks
edited by David Collier
Princeton University Press, 1979
Buku Teks