Carr, Joseph J. <br/><br/>
Elements of electronic communications / 
Joseph J. Carr 
 - Virginia :  Reston Publishing,  1978 
 - vii, 486 p. :  ill. ;  23 cm. 
<br/><br/><label>ISBN: </label>0879092068 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telecommunications<br/>Radio<br/>Electronics