Loucks, W. N. (1973). Comparative economic systems. New York: Harper & Row.
Dyfyniad Arddull ChicagoLoucks, William N. Comparative Economic Systems. New York: Harper & Row, 1973.
Dyfyniad MLALoucks, William N. Comparative Economic Systems. New York: Harper & Row, 1973.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.