edited by Robert DeMaria, Jr.
Blackwell, 1996
Buku Teks
Adams, James E.
Wiley-Blackwell, 2009
Buku Teks
Fischer, Hermann
Cambridge University Press, 2010
eBooks
Hanes, Ernest
Macmillan, 1937
Buku Teks SO
Otis, William Bradley
Barnes & Noble, 1939
Buku Teks