TY  - BOOK
AU  - Housley,Trevor
TI  - Data communications & teleprocessing systems
SN  - 0131974351 (pbk) :
AV  - TK5105.5 
U1  - 384.3 Cut H 8178 19
PY  - 1987///
CY  - London
PB  - Prentice-Hall International
KW  - Data communications
KW  - Computer systems
KW  - Networks
N1  - Previous ed.: 1979; Includes index
ER  -