Riggs, N. C. <br/><br/>
Analytic geometry / 
by N. C. Riggs 
 - New York :  Macmillan,  1916 
 - xi, 294 p. ;  19 cm. 
<br/><br/> Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geometry, Analytic
<br/><br/><label>Dewey Class. No.: </label>516