APA (7th ed.) Citation

Hanson, C. H., Garrison, C. S., & Graumann, H. O. (1960). Alfalfa varieties in the United States. U.S. Dep. of Agriculture.

Chicago Style (17th ed.) Citation

Hanson, C. H., C. S. Garrison, and H. O. Graumann. Alfalfa Varieties in the United States. Washington, DC: U.S. Dep. of Agriculture, 1960.

MLA (9th ed.) Citation

Hanson, C. H., et al. Alfalfa Varieties in the United States. U.S. Dep. of Agriculture, 1960.