APA (7th ed.) Citation

Maritain, J., & Simon, Y. (1951). Philosophy of nature. Philosophical Library.

Chicago Style (17th ed.) Citation

Maritain, Jacques, and Yves Simon. Philosophy of Nature. New York: Philosophical Library, 1951.

MLA (9th ed.) Citation

Maritain, Jacques, and Yves Simon. Philosophy of Nature. Philosophical Library, 1951.