APA (7th ed.) Citation

Hughes, H. D. M., & Metcalfe, D. S. (1972). Crop production (3d ed.). Macmillan.

Chicago Style (17th ed.) Citation

Hughes, Harold De Mott, and Darrel S. Metcalfe. Crop Production. 3d ed. New York: Macmillan, 1972.

MLA (8th ed.) Citation

Hughes, Harold De Mott, and Darrel S. Metcalfe. Crop Production. 3d ed. Macmillan, 1972.