APA (7th ed.) Citation

Nicholson, B. E., & Harrison, S. G. (1969). The Oxford book of food plants. Oxford University Press.

Chicago Style (17th ed.) Citation

Nicholson, Barbara Evelyn, and Sydney Gerald Harrison. The Oxford Book of Food Plants. London: Oxford University Press, 1969.

MLA (9th ed.) Citation

Nicholson, Barbara Evelyn, and Sydney Gerald Harrison. The Oxford Book of Food Plants. Oxford University Press, 1969.