Ehrlich, Paul R; Ehrlich, Anne H <br/><br/>
Population resources environment: Issues in human ecology 

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 - W H Freeman & Co., San Francisco  1970 
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<br/><br/><label>ISBN: </label>  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environment by humans
<br/><br/><label>Dewey Class. No.: </label>577.55  EHR-P