TY  - BOOK
AU  - Sumitabha Das
TI  - UNIX : : UNIX : concepts and applications 
SN  - 0070534756
U1  - 004.133 SUM 
PY  - 2003///
CY  - New Delhi : 
PB  - Tata McGraw-Hill Publishing Company Limited, 
KW  - Computer science
KW  - Operating systems
ER  -