TY  - BOOK
AU  - Held, Gilbert, 1943-
TI  - Data communications testing and trouble shooting
T2  - VNR computer library
SN  - 0442009909
AV  - TK 5105 Hel 
PY  - 1992///
CY  - New York
PB  - Van Nostrand Reinhold
KW  - COMPUTER NETWORKS
KW  - DATA TRANSMISSION SYSTEMS--MAINTENANCE AND REPAIR
KW  - DATA
KW  - COMPUTER CAPACITY--PLANNING
KW  - DATA TRANSMISSION SYSTEMS--TESTING
ER  -