TY  - BOOK
AU  - Silberschatz, Abraham
AU  -  Galvin,Peter Baer
AU  -  Gagne,Greg
TI  - Operating system concepts 
U1  - 005.43 
PY  - 2012///
CY  - New Delhi
PB  - Wiley India
KW  - Operating systems (Computers)
ER  -