TY  - BOOK
AU  - Heck, Hans-Josef
TI  - UNIX: : working with UNIX and XENIX
SN  - 1853653802
U1  - 001.64/2UNI 
PY  - 1993///
CY  - Great Britain
PB  - Prisma computer courses
KW  - UNIX (Computer file)
KW  - XENIX
ER  -