TY  - BOOK
AU  - Williams, Brian K.
AU  - Sawyer, Stacey C.
TI  - Using information technology : : a practical introduction to computers and communications 
SN  - 978-0-07-122128-3
AV  - 004 W66u 
PY  - 2011///
CY  - New York
PB  - McGraw-Hill
KW  - Information Technology
KW  - Computers
KW  - Telecommunication systems
ER  -