Das, B. C. <br/><br/>
Intermediate trigonometry 
B. C. Das and B. N. Mukherjee 
 - 14th ed. 
 - Calcutta  U. N. Dhur and Sons  1950 
 - 298p.xxii 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>516.24  / D229