Bigelow, Stephen J. <br/><br/>
Understanding Telephone Electronics 
By Stephen J. Bigelow 
 - Third Edition 
 -  Texas Instruments, Inc.  1984 
 - v, 367 pages, 22 cm. 
<br/><br/> includes glossary & index 
<br/><br/><label>ISBN: </label>971-8613-53-6 
<br/><br/><label>Dewey Class. No.: </label>621.38456 B48t C2