Warburton, Nigel, 1962-
Yale University Press, 2012
Buku Teks
Adams, James E.
Wiley-Blackwell, 2009
Buku Teks
Otis, William Bradley
Barnes & Noble, 1939
Koleksi Publik
Needleman, Morris H.
Barnes & Noble, 1939
Koleksi Publik
Oxford University Press, 1981
Koleksi Publik