Ryder, John D. <br/><br/>
Networks, Lines and Fields 

 - 2nd 
 - New Delhi :  Prentice Hall of India Pvt. Ltd.,  c1955. 
 - xi, 593 p. :  Yes  21 cm. 
<br/><br/> Includes index 
<br/><br/>
<br/><br/><label>ISBN: </label>8120302990 
<br/><br/><label>Subjects--Geographic Terms: </label><br/>India
<br/><br/><label>Dewey Class. No.: </label>004.6  / R992n c1955