Das,B.C. <br/><br/>
Intermediate Trigonometry  
by B.C.Das and B.N.Mukherjee 
 - 20th Edition  
 - Calcutta   U.N.Dhur & Sons Privete Ltd.  1033 
 - viii,298p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>510   / DAS