APA (7th ed.) Citation

Harrison & Wallis. (1969). The Oxford book of food plants. Oxford University Press.

Chicago Style (17th ed.) Citation

Harrison and Wallis. The Oxford Book of Food Plants. Oxford: Oxford University Press, 1969.

MLA (8th ed.) Citation

Harrison and Wallis. The Oxford Book of Food Plants. Oxford University Press, 1969.

Warning: These citations may not always be 100% accurate.