Cita APA (7th ed.)
Dubofsky, M., & Dulles, F. R. (2010). Labor in America: A history (Eighth edition.). Harlan Davidson, Inc..
Cita Chicago (17th ed.)
Dubofsky, Melvyn, i Foster Rhea Dulles. Labor in America: A History. Eighth edition. Wheeling, Illinois: Harlan Davidson, Inc., 2010.
Cita MLA (9th ed.)
Dubofsky, Melvyn, i Foster Rhea Dulles. Labor in America: A History. Eighth edition. Harlan Davidson, Inc., 2010.
Atenció: Aquestes cites poden no estar 100% correctes.