Smale, P. H. <br/><br/>
Telecommunication systems I / 
P. H. Smale. 
 - 2nd ed. 
 - Allahabad :  Wheeler,  [19?]. 
 - 121 p. :  ill. ;  25 cm. 
<br/><br/> Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telecommunication systems