APA citiranje

Iowa State College. Extension Service. (1934). Extension circular. Iowa State College of Agriculture and Mechanic Arts.

Chicago Style (17th ed.) Citation

Iowa State College. Extension Service. Extension Circular. Ames, Iowa: Iowa State College of Agriculture and Mechanic Arts, 1934.

MLA citiranje

Iowa State College. Extension Service. Extension Circular. Iowa State College of Agriculture and Mechanic Arts, 1934.