APA (7th ed.) Citation

University of Minnesota. Agricultural Extension Service. (1940). Extension bulletin. Agricultural Extension Service, University of Minnesota.

Chicago Style (17th ed.) Citation

University of Minnesota. Agricultural Extension Service. Extension Bulletin. [St. Paul, Minn.]: Agricultural Extension Service, University of Minnesota, 1940.

MLA (9th ed.) Citation

University of Minnesota. Agricultural Extension Service. Extension Bulletin. Agricultural Extension Service, University of Minnesota, 1940.