TY  - BOOK
AU  - Clark,Martin P.
TI  - Networks and telecommunications: desing and operation 
SN  - 0471973467
AV  - TK5102 C35 1997
PY  - 1997///
CY  - Chichester, England
PB  - John Wiley [and] Sons
N1  - Incluye bibliografia
ER  -