TY  - BOOK
AU  - Mchoes, Ann Mclver and Flynn, Ida, M 
TI  - Understanding operating systems 
SN  - 9788131521564
U1  - 005.43 MCH  
PY  - 2011///
CY  - Cengage learning 
PB  - New Delhi 
KW  - Operating systems
ER  -