APA (7th ed.) Citation

Schilpp, P. A. (1971). The philosophy of George Santayana ([2d ed.].). Open Court Publishing.

Chicago Style (17th ed.) Citation

Schilpp, Paul Arthur. The Philosophy of George Santayana. [2d ed.]. La Salle [Illinois]: Open Court Publishing, 1971.

MLA (9th ed.) Citation

Schilpp, Paul Arthur. The Philosophy of George Santayana. [2d ed.]. Open Court Publishing, 1971.