Edited by Russell L. Cecil and Robert F. Loeb
W.B. Saunders, 1951
Buku Teks
McCoubrey, Hilaire, author
Black Stone Press Limited, 1999
Buku Teks
Downes, T. Antony, author
Blackstone, 1995
Buku Teks
Downes, T. Antony, author
Blackstone Press, 1993
Buku Teks
edited by Michael W. Apple and Linda K. Christian-Smith
Routledge, 1991
Buku Teks