APA (7th ed.) Citation

Popkin, R. H., & Stroll, A. (1956). Philosophie made simple. Doubleday & Company.

Chicago Style (17th ed.) Citation

Popkin, Richard H., and Avrum Stroll. Philosophie Made Simple. Garden City [u.a.]: Doubleday & Company, 1956.

MLA (8th ed.) Citation

Popkin, Richard H., and Avrum Stroll. Philosophie Made Simple. Doubleday & Company, 1956.