Bell, Cliford <br/><br/>
Essentials of plane and sperical trigonometry 

 - New York  Henry Holt and Company  1950 
 - Varies 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Trigonometry
<br/><br/><label>Dewey Class. No.: </label>514.5  / B41E