Cofnodi Dyfyniadau
Dyfyniad APA
Montgomery, D. R. (2007). Dirt: The erosion of civilizations. University of California Press.
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Dyfyniad Arddull Chicago
Montgomery, David R. Dirt: The Erosion of Civilizations. Berkeley: University of California Press, 2007.
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Dyfyniad MLA
Montgomery, David R. Dirt: The Erosion of Civilizations. University of California Press, 2007.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.