APA
Hanson C. H., Kehr W. R., . (1972). Alfalfa science and technology. Madison: American Society of Agronomy.
Chicago
Hanson C H, Kehr William R, . 1972. Alfalfa science and technology. Madison: American Society of Agronomy.
Harvard
Hanson C. H., Kehr W. R., . (1972). Alfalfa science and technology. Madison: American Society of Agronomy.
MLA
Hanson C H, Kehr William R, . Alfalfa science and technology. Madison: American Society of Agronomy. 1972.