Lovejoy, Arthur O.
Harper Torchbooks, 1960
Buku Teks
At The Clarendon Press, 1946
Buku Teks
Hook, Sidney, author
Beacon Press, 1943
Buku Teks
Lloyd, Christopher
Blackwell Publishing, 1993
Buku Teks
Stanford, Michael
Blackwell Publishers, 1998
Buku Teks