Cita APA

Santayana, G. (1962). The life of reason or the phases of human progress. Collier.

Citación estilo Chicago

Santayana, George. The Life of Reason or the Phases of Human Progress. Nueva York: Collier, 1962.

Cita MLA

Santayana, George. The Life of Reason or the Phases of Human Progress. Collier, 1962.

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