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Population, resources, environment; issues in human ecology/ Paul R. Ehrlich Anne H. Ehrlich.

by Ehrlich, Paul R | Ehrlich, Anne H.

Series: Series of books in biologyEdition: 2nd ed.Material type: Text Text; Format: print Publication details: San Francisco : W. H. Freeman, 1972Availability: Items available for loan: Main Library -University of Zimbabwe (2) Call number: HB871 EHR, ...

The population explosion / Paul R. Ehrlich & Anne H. Ehrlich.

by Ehrlich, Paul R | Ehrlich, Anne H.

Material type: Text Text; Format: print Publication details: New York : Simon and Schuster, c1990Availability: Items available for loan: Main Library -University of Zimbabwe (2) Call number: HB871 EHR, ...

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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