A history of engineering and science in the bell system : switching technology (1925-1975) /  
Prepared by A. E. Joel Jr. and other Members of the Technical Staff ; G.E. Schindler, Jr. ,Editor. 
 - xiv, 639 pages :   illustrations;  (for editing in ONSITE DUTY) 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0932764029 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Engineering --History.<br/>Electronic circuits.<br/>Science history.
<br/><br/><label>Dewey Class. No.: </label>621.381537