APA (7th ed.) Citation

Collingwood, R. G. (1958). The principles of art. Oxford University Press.

Chicago Style (17th ed.) Citation

Collingwood, R. G. The Principles of Art. New York: Oxford University Press, 1958.

MLA (9th ed.) Citation

Collingwood, R. G. The Principles of Art. Oxford University Press, 1958.