Cambridge University Press, , 1983"
Buku Teks
James, Clive
Faber and Faber, 1979
Buku Teks
Barker, Clive, author
HarperCollin, 2002
Buku Teks
Turner, Clive
The Law Book Company Information Services, 1997
Buku Teks
Burrows, William E., author
W.B. Saunders, 1959
Buku Teks