Human settlements   the environmental challenge  A   

 - London  Macmillan            1974 
 - xvi,209p  cm. 
<br/><br/> Appendix: P 175-209 
<br/><br/><label>ISBN: </label>333 14071 0 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Migration
<br/><br/><label>Dewey Class. No.: </label>U42.1.N7, L4