Lewis, Peter. <br/><br/>
Maps and statistics 

 - London :  Methuen,  1977 
 - 318 p.  : ilus. ; gráfs. 
 - The field of geography .
 - The field of geography .
<br/><br/><label>LCCN: </label>29739 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mapas estadísticos.
<br/><br/><label>Dewey Class. No.: </label>526  / L4