DeGregori, T. R. (1969). Economic development: The cultural context. John Wiley.
Dyfyniad Arddull ChicagoDeGregori, Thoms R. Economic Development: The Cultural Context. New York: John Wiley, 1969.
Dyfyniad MLADeGregori, Thoms R. Economic Development: The Cultural Context. John Wiley, 1969.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.