Banfield, Edward C.
Free Press, 1965
Buku Teks
Banfield, Edward C.
Free Press, 1966
Buku Teks
Banfield, Edward C.
Little, Brown , 1970
Buku Teks
Dimock, Marshall Edward
Henry Holt , 1953
Buku Teks
McAllister, James Alexander
McGill-Queens University Press, 1984
Buku Teks