Das,B.C. <br/><br/>
Higher Trogonometry  
by B.C.Das and B.N.Mukherjee  
 - 18th Edition  
 - Calcutta  U.N.Dhur & Sons,Private Ltd. 
 - xvi,270p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics 
<br/><br/><label>Dewey Class. No.: </label>510  / DAS