APA (7th ed.) Citation

Watson, R. A. (2002). Cogito, ergo sum: The life of Rene Descartes. David R. Godine.

Chicago Style (17th ed.) Citation

Watson, Richard A. Cogito, Ergo Sum: The Life of Rene Descartes. Boston: David R. Godine, 2002.

MLA (8th ed.) Citation

Watson, Richard A. Cogito, Ergo Sum: The Life of Rene Descartes. David R. Godine, 2002.

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