Bobbs-Merril, 1956
Buku Teks
edited with an introduction by Ralph H. Gabriel
The Liberal Art Press, 1953
Buku Teks
Dolan, John F., author
Aspen Law & Business , 1997
Buku Teks
West Publishing Co, 1993
Buku Referensi
American Bar Association, 1975
Buku Teks