TY  - BOOK
AU  - Friend, George E.
AU  - Baker, Charles H. and others.
TI  - Understanding Data Communications
SN  - 9788120310803
U1  - 004.6 
PY  - 1996///
CY  - New Delhi
PB  - Prentice Hall of India
KW  - Data Communication
KW  - CS
ER  -