Plan B 4.0
Plan B 4.0 :mobilizing to save civilization / Lester R. Brown
New York :W.W. Norton ,c2009
xiv, 368 p. ; 25 cm.
9780393071030 (alk. paper)
Earth Policy Institute
Previous ed.: published as Plan B 3.0. 2008
"Substantially revised"--Cover
Environmental policy -- Economic aspects
Natural resources -- Management
Economic development
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