Kohler, H. (1970). Instructor's manual for economics: The science of scarcity. Dryden Press.
Dyfyniad Arddull ChicagoKohler, Heinz. Instructor's Manual for Economics: The Science of Scarcity. Illinois: Dryden Press, 1970.
Dyfyniad MLAKohler, Heinz. Instructor's Manual for Economics: The Science of Scarcity. Dryden Press, 1970.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.