APA (7th ed.) Citation

Olsen, M. H. (1961). Some principles and practices of farmer cooperatives. Interstate Printers and Publishers.

Chicago Style (17th ed.) Citation

Olsen, M. H. Some Principles and Practices of Farmer Cooperatives. Danville, Ill.: Interstate Printers and Publishers, 1961.

MLA (9th ed.) Citation

Olsen, M. H. Some Principles and Practices of Farmer Cooperatives. Interstate Printers and Publishers, 1961.