Das,B.C, <br/><br/>
Intermediate Trigonometry  Textual Documents 
B.C.Das & B.N.Mukherjee 
 - Kolkata:  U.N.Dhur & Sons Pvt Ltd. 
 - 103p. 
<br/><br/><label>ISBN: </label>81-85624-85-2 
<br/><br/><label>Subjects--Index Terms: </label>Intermediate Trigonometry G-Mathematics 
<br/><br/><label>Dewey Class. No.: </label>514