Wentworth, George  <br/><br/>
Plane and Spherical Trigonometry and Tables /  
George Wentworth ; David Eugene Smith 
 - Boston :   Ginn & Co,   1938.  
 - 232 p.   tablas 
<br/><br/><label>Subjects--Topical Terms: </label>--TRIGONOMETRIA--GEOMETRIA
<br/><br/><label>Universal Decimal Class. No.: </label>514