Exploring our living planet/ National GeoGrăphic Society 

 - Washington:  National GeoGrăphic Society,  1983 
 - 366 p. 
<br/><br/> Inv. 2016 
<br/><br/><label>LCCN: </label>true true 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Terra
<br/><br/><label>Universal Decimal Class. No.: </label>1523.31 NAT ex