Niles, Nathan O. <br/><br/>
Trigonometria plana. 

 - 2 Ed. 
 - Mexico   Limusa    1970. 
 - 269p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Trigonometria plana.
<br/><br/><label>LC Class. No.: </label>QA533  / .N5 1991