APA (7th ed.) Citation

Blum, A. A. (1972). A history of the American labor movement. American Historical Association.

Chicago Style (17th ed.) Citation

Blum, Albert A. A History of the American Labor Movement. Washington: American Historical Association, 1972.

MLA (9th ed.) Citation

Blum, Albert A. A History of the American Labor Movement. American Historical Association, 1972.