Dyfyniad APA

Hopkins, W. S. (1948). Labor in the American economy. New York: McGraw-Hill Book Company, Inc.

Dyfyniad Arddull Chicago

Hopkins, William Stehen. Labor in the American Economy. New York: McGraw-Hill Book Company, Inc, 1948.

Dyfyniad MLA

Hopkins, William Stehen. Labor in the American Economy. New York: McGraw-Hill Book Company, Inc, 1948.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.