Rai, B. R. <br/><br/>
Text book on plane trignometry :  for B. A. & B.Sc students / 
by B. R. Rai and B. B. Singh 
 - Agra :  Adarsh,  1967 
 - 235 p. :  ill. ;  22 cm. 
<br/><br/><label>ISBN: </label> Rs. 6.50 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Trigonometry
<br/><br/><label>Dewey Class. No.: </label>514