McCormick, Charles T. (Charles Tilford), 1889-1963
Foundation Press, 1976
Buku Teks
Louisell, David W.
Foundation Press, 1979
Buku Teks
Kauper, Paul G.
Little, Brown, 1971
Buku Teks
Barrett, Edward L.
Foundation Press, 1977
Buku Teks
Kauper, Paul G.
Little, Brown, 1966
Buku Teks