TY  - GEN
AU  - Elmasri, Ramez
AU  - Carrick, A Gil
AU  - Levine,David
TI  - Operating systems : a spiral approach
SN  - 9780071070942
U1  - 001.6425 
PY  - 2010///
CY  - New york
PB  - Tata McGraw
KW  - Operating systems-computer
ER  -