Packer, Herbert L.
Stanford University Press, 1968
Buku Teks
Thompson, Leon Whitey
Thompson , 1995
Buku Teks
Henderson, James A.
Little, Brown, 1992
Buku Teks
edited by Paul D. Rheingold and Sheila L. Birnbaum
Practising Law Institute, 1975
Buku Teks
by Alvin S. Weinstein [and others]
John Wiley & Sons, 1978
Buku Teks