edited Jeffrey Jowell and Dawn Oliver
Clarendon Press, 1989
Buku Teks
edited by Jeffrey Jowell and Dawn Oliver
Clarendon Press, 1994
Buku Teks
Welch, Joseph N., author
Houghton Miffiln, 1956
Buku Teks
Amery, L.S., author
Oxford University Press, 1953
Buku Teks
Corwin, Edward S., author
William Sloane, 1949
Buku Teks