edited by Colin A. Palmer
Variorum, 1998
Buku Teks
Heartfield, James, author
Oxford University Press, 2017
eBooks
Bracy, Warren D.
The Bobbs-Merrill Company, Inc., 1978
Buku Teks
McDonald, Stephen L.
The Johns Hopkins Press, 1971
Buku Teks
U.S. and World Publications, Inc., 1961
Buku Teks