Beatson, J.
Claredon Press, 1983
Buku Teks
Koch, Charles H.
The Michie Company Law Publishers, 1991
Buku Teks
Schlesinger, Rudolf B.
The Foundation Press, 1950
Buku Teks
Kauper, Paul G., author
Little, Brown, 1971
Buku Teks
Dine, Janet, author
Blackstone Press, 1993
Buku Teks