Cita APA

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

Citación estilo Chicago

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

Cita MLA

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