Santayana, G. (1936). The life of reason: Introduction, reason in common sense, reason in society (Triton ed.). Charles Scribner's Sons.
Chicago Style (17th ed.) CitationSantayana, George. The Life of Reason: Introduction, Reason in Common Sense, Reason in Society. Triton ed. New York: Charles Scribner's Sons, 1936.
MLA (9th ed.) CitationSantayana, George. The Life of Reason: Introduction, Reason in Common Sense, Reason in Society. Triton ed. Charles Scribner's Sons, 1936.
Warning: These citations may not always be 100% accurate.
