Deserts on the march /

Bibliographic Details
Main Author:	Sears, Paul B. (Paul Bigelow), 1891-1990
Format:	Book
Language:	English
Published:	Norman : University of Oklahoma Press, 1980.
Edition:	4th ed.
Subjects:	Nature > Effect of human beings on > United States. Desertification > United States. Agricultural ecology > United States. Conservation of natural resources > United States.

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