Bronowski, J., editor
Baltimore, Penguin Books
Buku Teks
Clemen, Wolfgang
Methuen, 1977
Buku Teks
Goddard, Harold C.
Phienix Books, 1990
Buku Teks
Manning, Peter J.
Oxford University Press, 1990
Buku Teks
Dowden, Edward
American Book, [date of publication not identified]
Buku Teks