State of the world 1997: a worldwatch Institute report on progress toward a sustainable society
W.W. Norton, 1997
Buku Teks SO
State of the world 1990 : a worldwatch institute report on progress toward a sustainable society
by Lester R. Brown ... [and others]
W.W. Norton, 1990
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Erik Assadourian, project director
State of the world 2012 : moving toward sustainable prosperity : a Worldwatch Institute report on progress toward a sustainable society
Island Press, 2012
eBooks
State of the world 1996: a worldwatch Institute report on progress toward a sustainabl society
WW.Norton, 1996
Buku Teks SO
State of the world 1998: a worldwatch Institute report on progress toward a sustainabl society
wW.Norton & Co., 1998
Buku Teks SO