DAS, B. C. <br/><br/>
HIGHER TRIGONOMETRY 

 - 28TH. 
 - NEW DELHI  S.CHAND & COMPANY  2000 
 - 228. 
<br/><br/><label>Subjects--Index Terms: </label>Mathematics 
<br/><br/><label>Dewey Class. No.: </label>510 DAS