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Ecology 18 Human ecology 9 Environmental protection 5 Human ecology -- 5 Environmental aspects 4 Environmental policy -- 4 Ecology -- 3 more ...
Ecology 18 Human ecology 9 Environmental protection 5 Human ecology -- 5 Environmental aspects 4 Environmental policy -- 4 Ecology -- 3 more ...
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Published 1992
Subjects: ';
“...Human ecology...”