Plane and spherical trigonometry with tables 
Kells, Lyman M. 
 - Third edition. 
 -  McGraw-Hill  Inc.  1978 
 - 118 pages. 
<br/><br/>
<br/><br/><label>ISBN: </label>9-71081917-8 
<br/><br/><label>Dewey Class. No.: </label>516.24 K29p 1978