Alssid, Michael William, 1927-
Twayne, 1967
Buku Teks
Barley, Nigel
H. Holt, 1992
Buku Teks
edited by Eugene Vinaver
Oxford University Press, 1954
Buku Teks
edited by Eugene Vinaver
Clarendon Press, 1948
Buku Teks
Blunden, Edmund
Macmillan's Pocket Lib., 1951
Buku Teks