Kells, Lyman M. <br/><br/>
Plane and spherical trigonometry. 

 - Alternate ed. 
 - New York,  London,  McGraw-Hill book company, inc.,  1943. 
 - xvii, 400 p. incl. front.(4 port.) illus., diagrs.  24 cm. 
<br/><br/> "Answers": p. 365-395. 
<br/><br/>
<br/><br/><label>Subjects--Topical Terms: </label><br/>MCE<br/>Plane trigonometry.<br/>Spherical trigonometry.
<br/><br/><label>Dewey Class. No.: </label>516.244   / KEL