TY  - BOOK
AU  - Elmasri, Ramez. Carrick, A Gil. Levine, David.
TI  - Operating systems : a spiral approach
SN  - 9780071070942
U1  - 001.642  ELM;1 
PY  - 2010///
CY  - New York
PB  - McGraw-Hill
KW  - Operating,spiral
ER  -