Ehrlich, Paul R <br/><br/>
Human ecology: problems and solutions 

 - San Francisco  W.H. Freeman  1973 
 - xi, 304p. : ill. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ECOLOGY<br/>HUMAN ECOLOGY
<br/><br/><label>LC Class. No.: </label>GF 41 Her