1
2
Published 1998
“...World Resources Institute....”
3
Published 1987
“...World Resources Institute....”
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7
Published 1986
“...World Resources Institute....”
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Published 1986
“...World Resources Institute....”
9
Published 1986
“...WORLD RESOURCES INSTITUTE, INTERNATIONAL INSTITUTE FOR ENVIRONMENT AND DEVELOPMENT....”
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11
Published 1998
“...World Resources Institute....”
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13
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Published 1988
“...World Resources Institute....”
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Published 1994
“...World Resources Institute...”
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18
19
Published 1998
“...World Resources Institute....”
20