Bigelow, Stephen J. <br/><br/>
Understanding Telephone Electronics. 

 - 3rd./ed 
 - v, 387p  illus., glossary, index  22cm. 
<br/><br/><label>ISBN: </label>9718613536 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telephone--Indiana--1984--newsprint