Plane and spherical trigonometry : with tables 
Rider, Paul R. 
 -  The Macmillan Company.  1971 
 - xiv, 142 pages. 
<br/><br/>
<br/><br/><label>ISBN: </label>9-71081918-6 
<br/><br/><label>Dewey Class. No.: </label>516.22 R43p 1971