Rutter, William A., author
Gilbert Law Summaries, 1973
Buku Teks
Schwartz, Bernard, author
Little, Brown & Co., 1980
Buku Teks
Schuck, Peter H., author
Oxford University Press, 1994
Buku Teks
Brown, L. Neville (Lionel Neville), author
Clarendon Press, 1998
Buku Teks
Andersen, William R., author
Carolina Academic Press, 2010
Buku Teks