Hobbs, Marvin <br/><br/>
Modern communications switching systems / 
by Marvin Hobbs 
 - 2d ed. 
 - Blue Ridge Summit, Pa.   Tab Books  1981 
 - 308 p.   ill. ;  22 cm. 
<br/><br/> Gratis<br/>Lalitha Janakiraman<br/>$16.95 
<br/><br/><label>ISBN: </label>9780830696352 (hbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telephone, Automatic.<br/>Telephone switching systems, Electronic.<br/>Electric switchgear.
<br/><br/><label>Dewey Class. No.: </label>621.3857 HOB