TY  - GEN
AU  - Ramez Elmasri
TI  - Operating systems: a spiral approach
T2  - 26832
SN  - 9780070164543
U1  - 005.43 ELM 
PY  - 2010///
CY  - New Delhi
PB  - Mc Graw Hill
KW  - Operating systems: a spiral approach
ER  -