TY  - BOOK
AU  - Bach, Maurice J.
TI  - Design of the UNIX operating system
SN  - 81-203-0516-7
U1  - 001.6425 18th.
PY  - 1986///
CY  - New Delhi
PB  - Prentice Hall 
KW  - UNIX (Computer operating system)
KW  - Computer operating system
ER  -