Cita APA (7th ed.)

Orth, S. P. (1921). The armies of labor: A chronicle of the organized wageearners. Yale university press; [etc., etc.].

Cita Chicago (17th ed.)

Orth, Samuel P. The Armies of Labor: A Chronicle of the Organized Wageearners. New Haven: Yale university press; [etc., etc.], 1921.

Cita MLA (8th ed.)

Orth, Samuel P. The Armies of Labor: A Chronicle of the Organized Wageearners. Yale university press; [etc., etc.], 1921.