White, James J., author
West Publishing, 1972
Buku Teks
Averill, Lawrence H.
West Publishing Company, 1978
Buku Teks
The American Law Intitute, 1976
Buku Teks
Dolan, John F., author
Little, Brown, 1991
Buku Teks
White, James J., author
West Publishing Co., 1972
Buku Teks