TY  - GEN
AU  - SAWYER, S, C.
AU  - WILLIAMS, B,  K.
TI  - Using  Information Technology: A Practical Introduction to Computers & Communications
SN  - 0-07-248464-0
U1  - LECT 004 SAW 
PY  - 2003///
CY  - London
PB  - McGraw-Hill Irwin
ER  -