Sommerville, Duncan M'Laren Young,  1879-1934, <br/><br/>
Analytical conics / 
by D. M. Y. Sommerville 
 - 3rd ed. rev. 
 - London :  G Bell and Sons,  1933 [Reprinted 1951] 
 - viii, 310 p :  ill. ;  22 cm. 
 - Bell's mathematical series. Advanced section .
 - Bell's mathematical series. .
<br/><br/> Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geometry, Analytic --Textbooks. 
<br/><br/><label>Dewey Class. No.: </label>516.152  / SOA 1951