APA (7th ed.) Citation

Williams, C. N. (1975). The agronomy of the major tropical crops. Oxford University Press.

Chicago Style (17th ed.) Citation

Williams, C. N. The Agronomy of the Major Tropical Crops. Kuala Lumpur ; New York: Oxford University Press, 1975.

MLA (9th ed.) Citation

Williams, C. N. The Agronomy of the Major Tropical Crops. Oxford University Press, 1975.