TY  - BOOK
AU  - Kessler, Gary C
TI  - ISDN
SN  - 9780070342422
U1  - 004.6 KES 
PY  - 1990///
CY  - New York
PB  - : McGraw-Hill
KW  - ISDN
KW  - Networks
KW  - Kessler, Gary C
KW  - Computer Science
ER  -