edited by Frances Cairncross and Phil Keeley
Methuen , 1981
Buku Teks
Toynbee, Arnold J., author
The Beacon Press , 1961
Buku Teks
Sanday, A.P., author
Hodder and Stoughton, 1979
Buku Teks
edited by Tony Buxton, Paul Chapman and Paul Temple
Routledge , 1994
Buku Teks
Hanson, John Lloyd, author
MacDonald & Evans, 1975
Buku Teks