Carlson, A Bruce <br/><br/>
Communication systems  an introduction to signals and noise in electrical communication 

 - 3rd ed 
 - McGraw - Hill, New York  1986 
 - xvii,686 
<br/><br/><label>ISBN: </label>0-07-009960-X 
<br/><br/><label>Dewey Class. No.: </label>621.38 Car