APA (7th ed.) Citation

Descartes, R., Spinoza, B. d., & Leibniz, G. W. (1960). The rationalists. Doubleday.

Chicago Style (17th ed.) Citation

Descartes, René, Benedictus de Spinoza, and Gottfried Wilhelm Leibniz. The Rationalists. New York: Doubleday, 1960.

MLA (9th ed.) Citation

Descartes, René, et al. The Rationalists. Doubleday, 1960.