B.C Das ,B.N Mukherjee <br/>
Higher Trigonometry 
B.C Das ,B.N Mukherjee 
 - 30th 
 - Kolkata  U. N. Dhur & sons Private Ltd.  2010 
 - [xiv] , 312p . :  18cm . 
<br/><br/> Includes Index . 
<br/><br/><label>ISBN: </label>81-85624-69-0 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>516.24  / DAH