TY  - BOOK
AU  - Clark,M.P.(Martin P.)
TI  - Networks and telecommunications: design and operation 
SN  - 0471927996
PY  - 1991///
CY  - Chichester
PB  - John Wiley & Sons
KW  - Telecommunication systems
KW  - Data transmission systems
KW  - Computer networks
ER  -