Mathew, K.C. Veeraraghavan, S. Raghavan, T. <br/><br/>
Co-ordinate geometry 

 - 1980 
 - S. Chand & company LTD  Ram nagar, New delhi   1984 
 - 306p.  fig. 
<br/><br/><label>Nat. Bib. No.: </label>5502 
<br/><br/><label>Universal Decimal Class. No.: </label>516.5  / MAT