Cita APA (7a ed.)

Santayana, G., Coleman, M. A., & Wokeck, M. S. (2015). The Life of Reason or The Phases of Human Progress: Reason in Art, Volume VII, Book Four (Critical edition.). Project Muse.

Cita Chicago Style (17a ed.)

Santayana, George, Martin A. Coleman, y Marianne Sophia Wokeck. The Life of Reason or The Phases of Human Progress: Reason in Art, Volume VII, Book Four. Critical edition. Baltimore, Maryland: Project Muse, 2015.

Cita MLA (8a ed.)

Santayana, George, et al. The Life of Reason or The Phases of Human Progress: Reason in Art, Volume VII, Book Four. Critical edition. Project Muse, 2015.