Pillay, T. K. Manicavachagom Natarajan, T. <br/><br/>
Textbook of Analytical Geometry 

 - Madras  S. Vishwanathan  1977 
 - p.456 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geometry<br/>Parabola
<br/><br/><label>Dewey Class. No.: </label>516 P641T