Growth of the world's urban and rural population, 1920-2000. 

 - New York :  United Nations,  1969. 
 - vii, 124 p. : 
<br/><br/> "United Nations publication, sales no. E.69.XIII.3." 
<br/><br/><label>ISBN: </label>GDA139 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Population.
<br/><br/><label>Dewey Class. No.: </label>304.620904  / Gr