Cita APA (7a ed.)

Guénon, R. (2001). The reign of quantity & the signs of the times (4th rev. ed.). Sophia Perennis.

Cita Chicago Style (17a ed.)

Guénon, René. The Reign of Quantity & the Signs of the Times. 4th rev. ed. Hillsdale, NY: Sophia Perennis, 2001.

Cita MLA (8a ed.)

Guénon, René. The Reign of Quantity & the Signs of the Times. 4th rev. ed. Sophia Perennis, 2001.