TY  - BOOK
AU  - Open University M252
TI  - Computing and computers course : videotape 8. File hierarchies and reorganisation
U1  - QA/76.9 
PY  - 1983///
CY  - Milton Keynes
PB  - Open University
KW  - British airways -- Reservation system.
KW  - Computers.
KW  - Electronic data processing -- Reservation system.
ER  -