TY  - BOOK
AU  - O'Leary ,Timothy J
AU  - O'Leary,Linda I
AU  - O'leary,Daniel A
TI  - Computing essentials 2021: Making it work for you 
SN  - 9781260570755
AV  - QA76.5  .O44 2021
PY  - 2021///
CY  - New York
PB  - McGraw-Hill
KW  - Computer
KW  - Electronic data processing
N1  - Includes index; BS101
TTS2233
ER  -