TY  - BOOK
AU  - Andrew Simmonds
TI  - Data Communications and Transmission Principles
SN  - 9780333646892
AV  - TK 5105.S56 1997 
PY  - 1997///
CY  - Houndmillss, Basingstoke, Hampshire RG21 6XS
PB  - MACMILLAN PRESS LTD
ER  -