TY  - BOOK
AU  - LEACHGEOREGE W
TI  - VNIX: Self-Teaching Guide / 
U1  - 005.43 
PY  - 1993///
CY  - [S.N] : 
PB  - JOHN WILEY AND SONS. INC ، 
KW  - UNIX
KW  - PROGRAMMED INSTRUCTION
KW  - OPERATING SYSTEMS
ER  -