TY  - GEN
AU  - Das, Sumitabha
TI  - Unix Concepts and Applications
SN  - 978-0-07-063546-3
U1  - 005.133'U' 
PY  - 2011///
CY  - New Delhi
PB  - Tata Mc Graw -Hill Education Pvt. Ltd.
ER  -