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Human ecology : problems and solutions / [by] Paul R. Ehrlich, Anne H. Ehrlich [and] John P. Holdren.

by Ehrlich, Paul R [author] | Ehrlich, Anne H [joint author.] | Holdren, John P [joint author.].

Publisher: California : W. H. Freeman, [1973]Availability: Items available for loan: COLLEGE LIBRARY [Call number: 301.31 Eh89 1973] (1).

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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 [comp.] | Ehrlich, Paul R [joint comp.].

Publisher: New York : Harcourt Brace Jovanovich , [1971]Availability: Items available for loan: COLLEGE LIBRARY [Call number: 574.5 G51 1971] (1).

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