TY  - BOOK
AU  - Das, Sumitabha
TI  - Unix: concept and application
SN  - 0070534756
U1  - 005.382 DAS 
PY  - 2002///
CY  - New Delhi
PB  - Tata McGraw-Hill Publishing Company
KW  - Unix (Computer Program Langauge)
KW  - Unix Operating System
ER  -