Hall, Hs <br/><br/>
Trigonometria Elemental :    /  
Hall, Hs 
 - 1a ed. 
 - Mexico ;   Intercontinental ,   1961 
 - 447 p. ;   19 cm. :    
<br/><br/><label>Subjects--Index Terms: </label>GEOMETRIA MATEMATICA TRIGONOMETRIA 
<br/><br/><label>Universal Decimal Class. No.: </label>514.116