APA (7th ed.) Citation

Langer, S. (1964). Philosophy in a New key. Mentor Book.

Chicago Style (17th ed.) Citation

Langer, Susanne. Philosophy in a New Key. New York: Mentor Book, 1964.

MLA (9th ed.) Citation

Langer, Susanne. Philosophy in a New Key. Mentor Book, 1964.

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