Cita APA (7a ed.)

Santayana, G. (1936). The life of reason: Introduction, reason in common sense, reason in society (Triton ed.). Charles Scribner's Sons.

Cita Chicago Style (17a ed.)

Santayana, George. The Life of Reason: Introduction, Reason in Common Sense, Reason in Society. Triton ed. New York: Charles Scribner's Sons, 1936.

Cita MLA (9a ed.)

Santayana, George. The Life of Reason: Introduction, Reason in Common Sense, Reason in Society. Triton ed. Charles Scribner's Sons, 1936.