Loney, S. L <br/><br/>
Plane Trigonometry: Part-II 
S. L., Loney 
 - London  New Academic Science  2018 
 - xiv, 178p.  ills  14cm 
<br/><br/><label>ISBN: </label>9781781831106 
<br/><br/><label>LC Class. No.: </label>QA533.  / L84