Forrest-Thomson, Veronica, author
Manchester University Press, 1978
Buku Teks
edited by Antony Easthope, John O. Thompson
Harvester Wheatsheaf, 1991
Buku Teks
Morrison, Blake, author
Methuen , 1986
Buku Teks
Pinto, Vivian de Sola
Hutchinson's University Library, 1951
Buku Teks
Whitworth, Michael H., author
Wiley-Blackwell, 2010
Buku Teks