A history of engineering and science in the Bell System :  electronics technology (1925-1975) / 
prepared by members of the technical staff, AT&T Bell Laboratories ; F.M. Smits, editor. 
 - Indianapolis :  AT&T Bell Laboratories,  1985. 
 - xiv, 370 p. :  ill., ports. ;  24 cm. 
 - A History of engineering and science in the Bell System ;  v. 6 .
<br/><br/><label>ISBN: </label>093276407X 
<br/><br/><label>LCCN: </label>84073157  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronics--History.--United States