APA (7th ed.) Citation

Grandmill, W. (1990). Investing in wheat, soybeans, corn. Windsor Books.

Chicago Style (17th ed.) Citation

Grandmill, William. Investing in Wheat, Soybeans, Corn. Brightwaters, N.Y.: Windsor Books, 1990.

MLA (9th ed.) Citation

Grandmill, William. Investing in Wheat, Soybeans, Corn. Windsor Books, 1990.