TY  - BOOK
AU  - Sarwar, Syed Mansoor, Koretsky, Robert and Sarwar, Syed Aqee 
TI  - Unix 
SN  - 81-317-1606-6 
U1  - 005.43 SAR  
PY  - 2007///
CY  - Pearson education asia 
PB  - New Delhi 
KW  - Operating systems
ER  -