Drooyan Irving <br/><br/>
Trigonometry    An analytic approach.      

 - 4 
 -  1983 
<br/><br/><label>Standard No.: </label>20087 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>B5, M3