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Population, resouces, environment : issues in human ecology
Ehrlich, Paul R.; Ehrlich, Anne H. - 1972 - 2. ed.
Persistent link: https://www.econbiz.de/10000683549
Cover Image
Population, resources, environment : issues in human ecology
Ehrlich, Paul R.; Ehrlich, Anne H. - 1970
Persistent link: https://www.econbiz.de/10002338203