Cannon, Don L. <br/><br/>
Understanding communications systems /  [Book]. 
written by Don L. Cannon, Gerald Luecke.  
 - Dallas, Tex. :   Texas Instruments Learning Center,   1980. 
 - 288 p. in various pagings :   ill. ;   22 cm. 
 - Understanding series .
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0895120356 (pbk.) 
<br/><br/><label>LCCN: </label>79092683 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telecommunication.