TY  - BOOK
AU  - Williams, Brian K.
AU  - Sawyer, Stacey C.
TI  - Using information technology
SN  - 0-07-049545-9
U1  - 004 
PY  - 2002///
CY  - New Delhi
PB  - Tata McGraw-Hill
KW  - Information technology
KW  - Telecommunication systems
ER  -