APA (7th ed.) Citation

Leonard, W. H., & Martin, J. H. (1963). Cereal crops. The Macmillan.

Chicago Style (17th ed.) Citation

Leonard, Warren H., and John Holmes Martin. Cereal Crops. Nueva York: The Macmillan, 1963.

MLA (9th ed.) Citation

Leonard, Warren H., and John Holmes Martin. Cereal Crops. The Macmillan, 1963.