Iowa State University. Center for Agricultural and Economic Development. (1965). Economic development of agriculture: The modernization of farming ([1st ed.].). Iowa State University Press.
Dyfyniad Arddull ChicagoIowa State University. Center for Agricultural and Economic Development. Economic Development of Agriculture: The Modernization of Farming. [1st ed.]. Ames: Iowa State University Press, 1965.
Dyfyniad MLAIowa State University. Center for Agricultural and Economic Development. Economic Development of Agriculture: The Modernization of Farming. [1st ed.]. Iowa State University Press, 1965.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.