Duttagupta,A.K. <br/><br/>
Resource Studies  : A Comprehensive  Approach 
/ by A.K. Duttagupta 
 - calcutta  new central book agency(p) ltd  1993 
 - 199p. 
<br/><br/><label>ISBN: </label>000 
<br/><br/><label>Dewey Class. No.: </label>001.42  / DUT/R