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1
State of the world 1991 : a Worldwatch Institute Report on progress toward a sustainable society /
Published 1991“…W.W. Norton & Company, Inc.,…”
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2
State of the world 1992 : a Worldwatch Institute Report on progress toward a sustainable society /
Published 1992“…W.W. Norton & Company, Inc.,…”
Book -
3
State of the world 1988 : a Worldwatch Institute Report on progress toward a sustainable society /
Published 1988“…W.W. Norton & Company, Inc.,…”
Book -
4
State of the world 1990 : a Worldwatch Institute Report on progress toward a sustainable society /
Published 1990“…W.W. Norton & Company, Inc.,…”
Book