TY  - BOOK
AU  - Shay, William A.
TI  - Understanding data communications and networks
SN  - 9788178001791
U1  - 004.6 SHA-W 
PY  - 2008///
CY  - India
PB  - BS Publications
KW  - Computer networks
KW  - Data transmission systems. ﾠ
ER  -