India :  pre-historic and proto-historic periods / 
ed by P. N. Chopra. 
 - 1st ed. 
 - New Delhi :  Publications Division, Ministry of Information and Broadcasting, Government of India.  1981. 
 - 50 p. ;  Map ;  21 cm. 
<br/><br/><label>ISBN: </label>8123006179 (pbk.) 
<br/><br/><label>Dewey Class. No.: </label>934  / CHO