Rai, Singhania, M. D. <br/><br/>
Simplified course in trigonometry 

 - NewDelhi  Sultan Chand & Sons Pvt. Ltd.  1999 
 - 530 pp. 
<br/><br/><label>ISBN: </label> 125 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>515.8  RAI