Schwartz, Bernard, author
Little, Brown & Co., 1988
Buku Teks
Schuck, Peter H., author
Oxford University Press, 1994
Buku Teks
Lorch, Robert S., author
Wayne State University Press, 1969
Buku Teks
Carter, Lief H.
Harpercollins , 1991
Buku Teks
Breyer, Stephen G., 1938-, author
Little, Brown, 1982
Buku Teks