TY  - BOOK
AU  - Hobbs,Marvin
TI  - Modern communications switching systems
SN  - 9780830696352 (hbk.)
U1  - 621.3857 HOB 
PY  - 1981///
CY  - Blue Ridge Summit, Pa. 
PB  - Tab Books
KW  - Telephone, Automatic
KW  - Telephone switching systems, Electronic
KW  - Electric switchgear
N1  - Gratis
Lalitha Janakiraman
$16.95
ER  -