Cita APA (7th ed.)

Beard, M. R. (1969). The American labor movement. Arno.

Cita Chicago (17th ed.)

Beard, Mary Ritter. The American Labor Movement. New York: Arno, 1969.

Cita MLA (8th ed.)

Beard, Mary Ritter. The American Labor Movement. Arno, 1969.