TY  - BOOK
AU  - Duck,Michael, Read, Richard
AU  - x
TI  - Data Communications and computer networks: for computer scientist
SN  - 9788131726082
U1  - 004.6/D834d 
PY  - 1988///
CY  - New Delhi
PB  - Pearson Education
KW  - Data transmission systems
KW  - Computer Science
ER  -