APA (7th ed.) Citation

Santayana, G. (1942). Realms of being (One-volume ed.). C. Scribner.

Chicago Style (17th ed.) Citation

Santayana, George. Realms of Being. One-volume ed. New York: C. Scribner, 1942.

MLA (9th ed.) Citation

Santayana, George. Realms of Being. One-volume ed. C. Scribner, 1942.

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