Hershberger, W.D.,  1903- <br/><br/>
Principles of communication systems/ 
W.D. Hershberger 
 - New York:  Prentice-Hall,  c1955 
 - xiii, 253 p.;  22 cm. 
 - Prentice-Hall electrical engineering series .
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label> $ 6.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telecommunication systems<br/>Modulation (Electronics)<br/>Information theory
<br/><br/><label>Dewey Class. No.: </label>621.38