Held, Gilbert
Understanding data communications : from fundamentals to networking - 2nd ed. - WEst Sussex John Wiley 1996 - 728p. : ill.
047196820X
COMPUTERS-DATA COMMUNICATION SYSTEMS
COMPUTER NETWORKS
DATA TRANSMISSION
DATA TRANSMISSION EQUIPMENT
621.39 / H4
Understanding data communications : from fundamentals to networking - 2nd ed. - WEst Sussex John Wiley 1996 - 728p. : ill.
047196820X
COMPUTERS-DATA COMMUNICATION SYSTEMS
COMPUTER NETWORKS
DATA TRANSMISSION
DATA TRANSMISSION EQUIPMENT
621.39 / H4