Prasad, S. B. <br/><br/>
Teach yourself  trigonometry 
S. B. Prasad 
 - 3rd ed. 
 - New Delhi  Bharati bhawan publishers  1988 
 - 249p.  22cm. 
<br/><br/><label>ISBN: </label> 12 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics<br/>Trigonometry
<br/><br/><label>Dewey Class. No.: </label>516.24  / PRA