Murphy, Walter F.
The John Hopkins University Press, 2007
Buku Teks
Burns, James McGregor
Avon Book Division, 1961
Buku Teks
Bowle, John
J. Cape, 1947
Buku Teks
Daly, L. J.
Loyola University Press, 1962
Buku Teks
Gouch, J.W.
Clarendon Press, 1950
Buku Teks