APA (7th ed.) Citation

Hanson, C. H., & Kehr, W. R. (1972). Alfalfa science and technology. American Society of Agronomy.

Chicago Style (17th ed.) Citation

Hanson, C. H., and William R. Kehr. Alfalfa Science and Technology. Madison, Wis.: American Society of Agronomy, 1972.

MLA (9th ed.) Citation

Hanson, C. H., and William R. Kehr. Alfalfa Science and Technology. American Society of Agronomy, 1972.