TY  - BOOK
AU  - Blethyn, Stanley G.
AU  - Parker, Carys Y.
TI  - Designing information systems
SN  - 0750610387
U1  - 658.403 8 
PY  - 1990///
CY  - London
PB  - Butterworth-Heinemann
KW  - Management information systems
ER  -