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Global ecology : readings toward a rational strategy for man / edited by John P. Holdren and Paul R. Ehrlich.

by Holdren, John P | Ehrlich, Paul R.

Material type: Text Text; Format: print Publication details: New York : Harcourt Brace Jovanovich : Law & Business, 1971Availability: Items available for loan: Map Library -University of Zimabwe (1) Call number: HC79.E5 GLO.

Ecoscience : population, resources, environment / Paul R. Ehrlich, Anne H. Ehrlich, John P. Holdren.

by Ehrlich, Paul R | Ehrlich, Anne H | Holdren, John P.

Material type: Text Text; Format: print Publication details: Natal : South African Association for the Advancement of Education, c1977Availability: Items available for loan: Main Library -University of Zimbabwe (1) Call number: HB871 EHR.

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