Smail, Lloyd L. <br/><br/>
Trigonometry: plane and Spherical 

 - New York:  McGraw-Hill Book Company,  1952. 
 - 406p.;  23cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geometry
<br/><br/><label>Dewey Class. No.: </label>516.24  / SMA