Trachtman, Joel P.
Cambridge University Press , 2013
Buku Teks
Lawrence, Peter, 1921-
Edward Elgar, 2014
Buku Teks
edited by Beth A. Simmons and Richard H. Steinberg
Cambridge University Press, 2006
Buku Teks
Fenwick, Charles G.
Appleton-Century-Crofts, 1948
Buku Teks
Shaw, Malcolm Nathan, 1947-
Cambridge, 2003
Buku Teks