TY  - BOOK
AU  - Williams, Brian K.,
AU  - Sawyer,Stacey C.
TI  - Using information technology
SN  - 9781259255663
U1  - 004  
PY  - 2015///
CY  - New York
PB  - McGraw Hill Education.
KW  - Telecommunication systems.
KW  - Information technology
N1  - Includes Index
ER  -