Askwith, E H <br/><br/>
Analytical geometry of the conic sections. 
by E H Askwith 
 - 3rd ed. 
 - London:  Adam & charles black,  1927. 
 - xii,443p.:  25cm. 
<br/><br/><label>Subjects--Index Terms: </label>Geometry, Mathematics 
<br/><br/><label>Dewey Class. No.: </label>516