APA (7th ed.) Citation

Santayana, G. (1955). The letters of George Santayana. Scribner.

Chicago Style (17th ed.) Citation

Santayana, George. The Letters of George Santayana. New York: Scribner, 1955.

MLA (9th ed.) Citation

Santayana, George. The Letters of George Santayana. Scribner, 1955.

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