United Nations Department of economic and social affairs <br/><br/>
Human settlements  the environmental challenge 

 - London  Macmillan and sons  1974 
 - xiv, 209 p.; 24cm. 
<br/><br/><label>ISBN: </label>333140710 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Housing<br/>Human settlements<br/>Rural settlement<br/>Urbanization