Allen, Michael J., author
Black Stone Press Limited, 1997
Buku Teks
Allen, Michael J., author
Blackstone, 1995
Buku Teks
Allen, Michael J., author
Blackstone Press , 1999
Buku Teks
lafave, Wayne R.
Thomson Reuters, 2010
Buku Teks
Jefferson, Michael
Pitman, 1992
Buku Teks