Bigelow, Stephen J. <br/><br/>
Understanding Telephone Electronics 
By Stephen J. Bigelow 
 - Third Edition 
 - Boston  Newnes  1997 
 - v, 367 pages, 23 cm. 
<br/><br/> includes glossary and index 
<br/><br/><label>ISBN: </label>0-7506-9944-2 
<br/><br/><label>Dewey Class. No.: </label>384.6 B48 1997