APA-referens (7:e uppl.)

Brooks, J. G. (1920). Labor's challenge to the social order: Democracy its own critic and educator. The Macmillan co..

Chicago-referens (17:e uppl.)

Brooks, John Graham. Labor's Challenge to the Social Order: Democracy Its Own Critic and Educator. New York: The Macmillan co., 1920.

MLA-referens (8:e uppl.)

Brooks, John Graham. Labor's Challenge to the Social Order: Democracy Its Own Critic and Educator. The Macmillan co., 1920.