APA (7th ed.) Citation

Santayana, G. (1905). Introduction & reason in commonsense. Constable.

Chicago Style (17th ed.) Citation

Santayana, George. Introduction & Reason in Commonsense. London [etc.]: Constable, 1905.

MLA (9th ed.) Citation

Santayana, George. Introduction & Reason in Commonsense. Constable, 1905.

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