Litton, Roger A., 1944-, author
Avebury, 1990
Buku Teks
edited by Daniel Greenberg
Sweet & Maxwell, 2008
Buku Teks
Feiling, Keith
Macmillan, 1951
Buku Teks
Oliver, Dawn, author
Pinter, A Cassell Imprint, 1996
Buku Teks
Cairncross, Liz, author
Routlege, 1997
Buku Teks