Howard, Godfrey, author
Pan Macmillan Publishers, 1993
Buku Referensi
Goulden, W. O., author
Little, Brown, 1955
Buku Referensi
Partridge, Eric, 1894-1979, author
Penguin Books, 1982
Buku Teks
Partridge, Eric, 1894-1979, author
Hamish Hamilton, 1994
Buku Referensi
Moynihan, Noel, author
Editiones Roche, 1988
Buku Teks