TY  - BOOK
AU  - Halsall, Fred  
TI  - Data communications, computer networks and open systems
T2  - Dagless, E L
SN  - 9788178080987
U1  - 004.6 
PY  - 1996///
CY  - Delhi
PB  - Pearson Education (Singapore)
KW  - Local area networks (Computer networks)
KW  - Computer network protocols
KW  - Computer networks
KW  - Data transmission systems
KW  - Wide area networks (Computer networks)
ER  -