Tohutoro APA (7th ed.)
Santayana, G., Wokeck, M. S., Coleman, M. A., & Gouinlock, J. (2011). The life of reason, or, The phases of human progress (Critical edition.). The MIT Press.
Tohutoru Kātū Chicago (17th ed.)
Santayana, George, Marianne S. Wokeck, Martin A. Coleman, me James Gouinlock. The Life of Reason, or, The Phases of Human Progress. Critical edition. Cambridge, Massachusetts ; London, England: The MIT Press, 2011.
Tohutoro MLA (9th ed.)
Santayana, George, et al. The Life of Reason, or, The Phases of Human Progress. Critical edition. The MIT Press, 2011.
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