APA (7th ed.) Citation

Montgomery, D. R. (2007). Dirt: The erosion of civilizations. University of California.

Chicago Style (17th ed.) Citation

Montgomery, David R. Dirt: The Erosion of Civilizations. Berkeley: University of California, 2007.

MLA (8th ed.) Citation

Montgomery, David R. Dirt: The Erosion of Civilizations. University of California, 2007.

Warning: These citations may not always be 100% accurate.