TY  - BOOK
AU  - Williams,B.K, stacey C. Sawyer & Sarah E. Hutchinson
TI  - Using information technology:a practical introduction to computers and communications
SN  - 041733288-7
AV  - QA 76.5 W55 1999
PY  - 1999///
CY  - Boston
PB  -  McGraw Hill
KW  - computers
KW  - telecommunications system
KW  - information technology
ER  -