RAM, BALLABH <br/><br/>
A Text Book of Co-ordinate Geometry  A Text Book of Co-ordinate Geometry._7th Ed, New Delhi : Deep & Deep Publications, 1975 
BALLABH RAM 
 - 7th 
 - New Delhi  Deep & Deep Publications  1975 
<br/><br/><label>Dewey Class. No.: </label>891.209