edited by John Morán González
Cambridge University Press, 2016
Buku Teks
Wynot, Edward D., author
University of Georgia Press, 1974
Buku Teks
Lairson, Thomas D., author
Thomson, 2003
Buku Teks
Hardin, Charles M., author
Free Press, 1952
Buku Teks
Galbraith, John Kenneth, 1908-2006, author
Houghton Miffiln, 1952
Buku Teks