Lial, Margaret L. <br/><br/>
Trigonometry 

 - 7th Edition 
 - Boston  Addison- Wesley Educational Publishers Inc.   2001 
 - xii,436p. 
<br/><br/><label>ISBN: </label> RS 1750.00 
<br/><br/><label>Source: </label> RS 1750.00 
<br/><br/><label>Dewey Class. No.: </label>516.24 LIA