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	1.	One earth, one future [electronic resource] : our changing global environment / by Cheryl Simon Silver with Ruth S. DeFries for the National Academy of Sciences. by Silver, Cheryl Simon DeFries, Ruth S ebrary, Inc Material type: Text; Format: electronic available online ; Literary form: Not fiction Publication details: Washington, D.C. : National Academy Press, c1990 Online resources: An electronic book accessible through the World Wide Web; click to view Availability: No items available. Add to cart (remove)
	2.	Global change and our common future [electronic resource] : papers from a forum / Ruth S. DeFries and Thomas F. Malone, editors. by DeFries, Ruth S Malone, Thomas F ebrary, Inc Forum on Global Change and Our Common Future (1989 : Washington, D.C.) Material type: Text; Format: electronic available online ; Literary form: Not fiction Publication details: Washington, D.C. : National Academy Press, 1989 Online resources: An electronic book accessible through the World Wide Web; click to view Availability: No items available. Add to cart (remove)
	3.	The big ratchet : how humanity thrives in the face of natural crisis : a biography of an ingenious species / Ruth DeFries ; designed by Pauline Brown. by DeFries, Ruth S [author.] Brown, Pauline [designer.] Material type: Text; Format: available online ; Literary form: Not fiction Publisher: New York : Basic Books, 2014Copyright date: ©2014 Online resources: An electronic book accessible through the World Wide Web; click to view Availability: No items available. Add to cart (remove)