Sen and Das <br/><br/>
Mathematics tutor  : arithmetic:algebra:statisticsgeometry mensuration :trigonometry inequation and surdsco-ordinate geometry 

 - Calcutta  ; Dass Publishing 
 - Various pages 
<br/><br/><label>ISBN: </label> 33 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>510  / SEN