Ram Ballabh <br/><br/>
A text book of co-ordinate geometry  A text book of co-ordinate geometry._13th Ed, Lucknow : Prakashan Kendra 

 - 13th 
 - Lucknow  Prakashan Kendra 
<br/><br/><label>Dewey Class. No.: </label>516.5  / R14T