edited and with an introd. by Andrew W. Lind
Greenwood Press, 1955
Buku Teks
Smith, Shawn Michelle
Princeton University Press, 1999
Buku Teks
Newman, David M., author
McGraw-Hill , 2012
Buku Teks
CQ Press, 2002
Buku Teks
London Routledge , 1977
Buku Teks