TY  - BOOK
AU  - Dhamdhere D. M 
TI  - Operating systems: a concept based approuch 
SN  - 0-07-048294-2 
U1  - 005.43 DHA  
PY  - 2008///
CY  - Tat mcgraw hill 
PB  - New Delhi 
KW  - Operating systems
ER  -