TY  - BOOK
AU  - HAHN, HARLEY
TI  - Unix companion
SN  - 78821495
U1  - 005.432  HAH 
PY  - 1995///
CY  - New York
PB  - Mc-Graw Hill
KW  -  Unix
KW  - companion
N1  - Operating systems
ER  -