TY  - BOOK
AU  - CLARK 
TI  - Networks and telecommunications : design and operation 
SN  - 0471973467 
U1  - 621.382 CLA 1997 
PY  - 1997///
CY  - New York
PB  - John Wiley & Sons
KW  - Computer networks
KW  - Data transmission systems
KW  - Telecommunication systems
N1  - Includes bibliographical references and index
ER  -