Thomas, Ronald R. <br/><br/>
Understanding telecommunications / 
Ronald R. Thomas. 
 - First edition 
 - xii, 243 pages :  illustrations ;  24 cm. 
<br/><br/> "A Petrocelli book."  Includes index. 
<br/><br/>Bibliography: p. 229-230. 
<br/><br/><label>ISBN: </label>0830692290 0830632298 9780830692293 9780830632299 
<br/><br/><label>LCCN: </label>88019940  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telecommunication.
<br/><br/><label>LC Class. No.: </label>TK5101  / .T44 1989 
<br/><br/><label>Dewey Class. No.: </label>384