APA (7th ed.) Citation

Descartes, R. (1970). Philosophical letters. Clarendon Pr.

Chicago Style (17th ed.) Citation

Descartes, René. Philosophical Letters. Oxford: Clarendon Pr, 1970.

MLA (9th ed.) Citation

Descartes, René. Philosophical Letters. Clarendon Pr, 1970.

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