APA (7th ed.) Citation

Ormond, J. (1973). Definition of a waterfall. Oxford University Press.

Chicago Style (17th ed.) Citation

Ormond, John. Definition of a Waterfall. London: Oxford University Press, 1973.

MLA (9th ed.) Citation

Ormond, John. Definition of a Waterfall. Oxford University Press, 1973.

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