Blake, Robert, author
Fontana Press, 1985
Buku Teks
Blake, Robert, author
Fontana Press, 1990
Buku Teks
Watkins, Alan
Duckworth, 1991
Buku Teks
Green, E. H. H.
Routledge, 1996
Buku Teks
Ben Jackson, Robert Saunders, editors
Cambridge University Press, 2012
Buku Teks