Franklin, Marc A., author
The Foundation Press, 1979
Buku Teks
Lucas, jo Desha
The Foundation Press, Inc., 1978
Buku Teks
Lucas, jo Desha
The Foundation Press, 1979
Buku Teks
Rose, Jerome G.
The State University of New Jersey, 1974
Buku Teks
Farnsworth, E. Allan
University casebook series, 1995
Buku Teks