Chugh;O.P.,Gupta;P.N.,Sharma;S.D. <br/><br/>
Commerce Mathematics  English 

 - New Delhi  Laxmi Publishing  1989 
 - V.pg 
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>510.C34C