Gupta, R. <br/><br/>
Complete guide to plane trigonometry part I(S.L. Loney) 

 - rev. enl. ed. 
 - Meerut  Pragati Prakashan  1990 
 - 447p.  23 cm. 
<br/><br/><label>Dewey Class. No.: </label>516.24,  / D, gup