APA (7th ed.) Citation

University of Illinois (Urbana-Champaign campus). Extension Service in Agriculture and Home Economics. (1940). Circular. The Service.

Chicago Style (17th ed.) Citation

University of Illinois (Urbana-Champaign campus). Extension Service in Agriculture and Home Economics. Circular. [Urbana, Ill.]: The Service, 1940.

MLA (9th ed.) Citation

University of Illinois (Urbana-Champaign campus). Extension Service in Agriculture and Home Economics. Circular. The Service, 1940.