TY  - BOOK
AU  - Black ,Uyless D
TI  - Data communications and ditributed networks
SN  - 8120309251
U1  -  004.6 20
PY  - 1993///
CY  - New dellhi
PB  - Prentice hall, 
KW  - Data transmission systems
KW  - Computer networks
KW  -  Electronic data processing $xDistributed processing
N1  - Includes index
ER  -