TY  - BOOK
AU  - Deitel, Harvey M.
AU  -  Deitel, Paul J
AU  - Choffnes, David R
TI  - Operating System
SN  - 9788131712894
U1  - 005.43              
PY  - 2013///
CY  - New Delhi
PB  - Pearson
KW  - Operating systems005.43
ER  -