TY  - BOOK
AU  - Clark, Martin P.
TI  -  Networks and telecommunications: design and operation 
SN  - 0471927996 :
U1  - 621.382  20
PY  - 1991///
CY  - Chichester, West Sussex, England,  New York
PB  - Wiley
KW  - Telecommunication systems
KW  - Data transmission systems
KW  - Computer networks
N1  - Includes bibliographical references and index
ER  -