Tohutoro APA (7th ed.)

Santayana, G., Wokeck, M. S., & Coleman, M. A. (2013). The life of reason, or, The phases of human progress (Critical ed.). MIT Press.

Tohutoru Kātū Chicago (17th ed.)

Santayana, George, Marianne Sophia Wokeck, me Martin A. Coleman. The Life of Reason, or, The Phases of Human Progress. Critical ed. Cambridge, Mass.: MIT Press, 2013.

Tohutoro MLA (9th ed.)

Santayana, George, et al. The Life of Reason, or, The Phases of Human Progress. Critical ed. MIT Press, 2013.