Cohen, Morris L.
West Publishing Company, 1983
Buku Teks
Cohen, Morris L., author
West Publishing Co., 1989
Buku Teks
Foster, Lynn
West Publishing Company, 1983
Buku Teks
Berring, Robert C., author
Thomson/West, 2005
Buku Teks
Mann, Thomas, author
Oxford University Press, 2005
Buku Teks