APA-referens (7:e uppl.)

Butler, A. D. (1961). Labor economics and institutions. Macmillan.

Chicago-referens (17:e uppl.)

Butler, Arthur D. Labor Economics and Institutions. New York: Macmillan, 1961.

MLA-referens (9:e uppl.)

Butler, Arthur D. Labor Economics and Institutions. Macmillan, 1961.