TY  - GEN
AU  - Silberschatz ,  Abraham
AU  - Galvin , Peter Baer 
AU  -  Gagne , Greg
TI  -  Operating system concepts
SN  - 981253055X
U1  - 005.43 
PY  - 2004///
CY  - Singapore
PB  - John wiley
KW  - OS
KW  - OPERATING SYSTEMS
KW  - COMPUTER SCIENCE
KW  - SYSTEM SOFTWARE
ER  -