Laino, Jane <br/><br/>
Introduction to telephony 

 - United States of America:      Telecom Books,            1999 
 - xvii, 329p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science
<br/><br/><label>Subjects--Index Terms: </label>Physics 
<br/><br/><label>Universal Decimal Class. No.: </label>621.39  / N9