Heer, David M <br/><br/>
Society and population 

 - 2nd ed. 
 - New Delhi  Printice-Hall  1978 
 - xiv,154 p. 
<br/><br/><label>ISBN: </label> RS9.5 
<br/><br/><label>Dewey Class. No.: </label>301.32 H361S