TY  - BOOK
AU  - Held 
TI  - Internetworking LANs and Wans : concepts, techniques and methods 
SN  - 0471935689
U1  - 004.67 HEL 1993 
PY  - 1993///
CY  - Chichester
PB  - John Wiley & Sons
KW  - Local area networks (Computer networks)
KW  - Wide area networks (Computer networks)
N1  - Includes index
ER  -