Cita APA (7a ed.)

Montgomery, D. R. (2008). Dirt: The erosion of civilizations. University of California press.

Cita Chicago Style (17a ed.)

Montgomery, David R. Dirt: The Erosion of Civilizations. Berkeley: University of California press, 2008.

Cita MLA (8a ed.)

Montgomery, David R. Dirt: The Erosion of Civilizations. University of California press, 2008.