Gautam, Alka <br/><br/>
Aarthik bhugol ke mul tatva / 
Alka Gautam 
 -  Sharda Pustak Bhawan, 
 - 597p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geography
<br/><br/><label>Dewey Class. No.: </label>910.133  / GAUA