Arora , P.N. & Bagga , P.C. <br/><br/>
Text book of Coordinate Geometry 

 - New Delhi  Pitambar publishing company (p) ltd.  1999 
 - 248,4p. 
<br/><br/><label>ISBN: </label>81-209-0206-8 
<br/><br/><label>Dewey Class. No.: </label>516.16   Aro.N7