Wentworth, George,  n. 1868, <br/><br/>
Plane and spherical trigonometry / 
By geoge wentworth and David Eugene Smith 
 - # teacher's ed. 
 - 501 páginas 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Trigonometría
<br/><br/><label>LC Class. No.: </label>QA531  / W4