Cohen, J.M. (John Michael), 1903-1989, author
Allen Lane, 1980
Buku Referensi
compiled and edited by Bill Wannan
Macmillan, 1974
Buku Referensi
Stevenson, Burton, author
New York, Harper & Brothers
Buku Referensi
edited by Angela Partington
Oxford University Press, 1993
Buku Referensi
Burgess, Peter H., author
Graham Brash, 1983
Buku Referensi