APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

Collingwood, Robin George. The Principles of Art. Oxford: Clarendon Press, 1958.

MLA (9th ed.) Citation

Collingwood, Robin George. The Principles of Art. Clarendon Press, 1958.