APA (7th ed.) Citation

Collingwood, R. G. (1946). The idea of history. Clarendon Press.

Chicago Style (17th ed.) Citation

Collingwood, Robin George. The Idea of History. Oxford: Clarendon Press, 1946.

MLA (9th ed.) Citation

Collingwood, Robin George. The Idea of History. Clarendon Press, 1946.