Cita APA (7a ed.)
Montgomery, D. R. (2007). 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, 2007.
Cita MLA (9a ed.)
Montgomery, David R. Dirt: The Erosion of Civilizations. University of California Press, 2007.
Precaución: Estas citas no son 100% exactas.