Crowford, J. G.
Australian National University Press, 1968
Buku Teks
Healey, Bede, author
Georgian House, 1972
Buku Teks
Scott, Ernest
Oxford University Press, 1953
Buku Teks
edited by Gordon Greenwood
Angus and Robertson, 1955
Buku Teks
edited by Gordon Greenwood
Angus and Robertson, 1969
Buku Teks