King, G. Brooks, author
American Book Company, 1963
Buku Teks
Wood, Jesse H., author
Evenston Harper, 1963
Buku Teks
Keenan, Charles W., author
Harper and Row, 1966
Buku Teks
Wood, Jesse H., author
Harper & Row, 1972
Buku Teks
Campbell, Richard D., author
Harcourt, Brace & World, 1968
Buku Teks