TY  - BOOK
AU  - Held, Gilbert
TI  - Practical network design techniques
SN  - 0-471-92938-7
U1  - 004.65 HEL'P 
PY  - 1991///
CY  - NEWYORK
PB  - JOHN WILEY
KW  - DATA TRANSMISSION SYSTEM COMPUTER NETWORKS
ER  -