TY  - BOOK
AU  - Leon-Gaciah, Alberto
TI  - Communication networks:  fundamental concepts and key architecture
SN  - 9780072423495
AV  - TK 5101 .L46  
PY  - 2000///
CY  - NewYork 
PB  -  McGraw-Hill
KW  - Telecommunication Systems
ER  -