TY  - BOOK
AU  - Dhamdhere, D. M
TI  - Introduction to system software
SN  - 0-07-451582-9
U1  - 005.4 D538 
PY  - 1986///
CY  - New Delhi
PB  - : Tata McGraw - Hill Publishing, 
KW  - Computer science
KW  - | Software
KW  - | Operation system
KW  - | System software
ER  -