Endicott, Timothy, author
Oxford University Press, 2015
Buku Teks
Friedmann, Wolfgang, 1907-1972, author
Melbourne University Press, 1950
Buku Teks
Schwartz, Bernard, author
Little, Brown & Co., 1991
Buku Teks
Schwartz, Bernard, author
Little, Brown & Co., 1976
Buku Teks
Foulkes, David, 1924-, author
Butterworth, 1990
Buku Teks