APA (7e ed.) Bronvermelding
Montgomery, D. R. (2007). Dirt: The erosion of civilizations. University of California Press.
Chicago (17e ed.) Bronvermelding
Montgomery, David R. Dirt: The Erosion of Civilizations. Berkeley: University of California Press, 2007.
MLA (9e ed.) Bronvermelding
Montgomery, David R. Dirt: The Erosion of Civilizations. University of California Press, 2007.
Let op: Deze citaties zijn niet altijd 100% accuraat.