Loney, S.L. <br/><br/>
Plane Trigonometry Part -I 

 - S Chand and Company Limited  New Delhi  2013 
 - 380  PB 
<br/><br/><label>ISBN: </label>9788121908016 
<br/><br/><label>Dewey Class. No.: </label>516.242 LOS P