Sommerville, D M Y <br/><br/>
Analytical conics 

 - 3 
 -  G Bell & Sons Ltd., London  1949 
 - 310 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Analytic geometry; Mathematics
<br/><br/><label>Dewey Class. No.: </label>516.3  SOM-A3