TY  - BOOK
AU  - McHoles, Ann McLver
AU  - Flynn, Ida M.
TI  - Understanding Operating Systems 
SN  - 9788131521564 ,8131521567
AV  - QA 76.76 M34 2011
PY  - 2011///
CY  - India 
PB  - Cengage Learning
KW  - Operating System
N1  - includes bibliography and index
ER  -