Nayak, P. Ranganath <br/><br/>
Breakthroughts / 
P. Ranganath nayak and John M. Ketteringham. 
 - London :  Mercury Books,  c1986. 
 - x, 371 p. 24 cm. 
<br/><br/> Includes index 
<br/><br/><label>LC Class. No.: </label>658.575  / N232 1986