Jay, Douglas, author
Faber & Faber, 1946
Buku Teks
Cole, George Douglas Howard, 1889-1959, author
Gollancz, 1950
Buku Teks
edited by Peter Van Ness ; with contributions by George Barany ... [et al.]
Lynne Rienner, 1989
Buku Teks
Gray, Alexander, author
Longmans, Green, 1948
Buku Teks SO
Spulber, Nicolas
Indiana University Press, 1971
Buku Teks