TY  - GEN
AU  - Ritchie, Colin
TI  - Operating systems: incorporating UNIX and MS-DOS
SN  - 8170296420
U1  - 005.43 
PY  - 1995///
CY  - New Delhi
PB  - BPB Pub.
KW  - COMPUTER SCIENCE
KW  - Operating Systems
KW  - SYSTEMS PROGRAMMES
ER  -