Gray, William S.
Prentiee-Hall, 1996
Buku Teks
Ryan, William T.
Richard D. Irwin, 1981
Buku Teks
Toye, William
Oxford University Press , 1959
Buku Teks
Keeton, William T., author
Penguin Books, 1976
Buku Teks
Rutter, William A., author
Gilbert Law Summaries, 1972
Buku Teks