Cita APA (7a ed.)

Perlman, S. (1922). A history of trade unionism in the United States. MacMillan.

Cita Chicago Style (17a ed.)

Perlman, Selig. A History of Trade Unionism in the United States. New York: MacMillan, 1922.

Cita MLA (9a ed.)

Perlman, Selig. A History of Trade Unionism in the United States. MacMillan, 1922.