National geographic Vol. 197 no. 6 June 2000 Indus: Clues an ancient civilization 

 - Washington, D.C.  National Geographic Society.  [date of publication not identified] 
 - v.  26cm 
<br/><br/> monthly 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geography--Periodicals.