edited by Allan Cochrane, Chris Hamnett and Linda McDowell
Harper and Row, 1981
Buku Teks
Richard T. LeGates, Frederic Stout, editor
Routledge, 2000
Buku Teks
Watt, William W. (William Whyte), author
Holt, Rinehart and Winston, 1961
Koleksi Publik
Watt, William W. (William Whyte), author
Holt, Rinehart and Winston, 1961
Koleksi Publik
edited by Harry Eckstein and David E. Apter
Free Press, 1968
Buku Teks