Trigonometry, Higher <br/><br/>
Higher Trigonometry / 
B. C. Das, B. N. Mukherjee. 
 - 28th ed 
 - Calcutta :  U. N. Dhur & Sons Pvt. Ltd,  1997 
 - 315 p. ;  18 cm 
<br/><br/><label>ISBN: </label>8185624232 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Trigonometry 
<br/><br/><label>Dewey Class. No.: </label>516.24  / DAH