TY  - GEN
AU  - O'Leary, Timothy J.
AU  - O'Leary, Linda I.
AU  - O'Leary, Daniel A.
TI  - Computing essentials 2019 : making IT work for you
SN  - 9781260098563
AV  - QA 75
PY  - 2019///
PB  - McGraw-Hill Education
KW  - Computers
N1  - 27621
ER  -