Ehrlich Paul R and others <br/><br/>
Humam ecology    Problems and solutions    
Ehrlich Paul R and others 
 - San Francisco    Freeman           1973 
 - xi,304p  cm. 
 - Series of books in biology  Ed by Donald Kennedy and Roderic B Park. .
<br/><br/> Appendix P 281-88 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sociometry
<br/><br/><label>Dewey Class. No.: </label>Y:(G:5), L3