Cita APA (7th ed.)

Dulles, F. R. (1949). Labor in America: A history. Crowell.

Cita Chicago (17th ed.)

Dulles, Foster Rhea. Labor in America: A History. New York: Crowell, 1949.

Cita MLA (9th ed.)

Dulles, Foster Rhea. Labor in America: A History. Crowell, 1949.