TY  - BOOK
AU  - O'Leary, Timothy J, 1947- 
AU  - O'Leary, Linda J
TI  - Computing essentials, 1999-2000 
SN  - 0073655562
U1  - 004 OLE 1998 
PY  - 1999///
CY  - Boston
PB  - Irwin/McGraw Hill
KW  - Computers
KW  - Electronic data processing
ER  -