Das,B.C. <br/><br/>
Intermediate Trigonometry  
by B.C.Das and B.N.Mukherjee 
 - Calcutta   U.N.Dhur & Sons (Private ) Limited   1933 
 - xvl,268p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics 
<br/><br/><label>Dewey Class. No.: </label>510   / DAS