Dirt the erosion of civilizations - Montgomery, David R., 1961- (Berkeley : University of California Press, 2007)
Good old dirt -- Skin of the Earth -- Rivers of life -- Graveyard of empires -- Let them eat colonies -- Westward hoe -- Dust blow -- Dirty business -- Islands in time -- Life span of civilizations.
Description based on print version record.
Includes bibliographical references (p. 251-270) and index.
Keywords: Soil science -- History; Soils; Soil erosion; Electronic books