TY  - BOOK
ED  - Association of Accounting Technicians.
TI  - AAT practice and revision kit, paper 6: elements of information systems 
SN  - 0862773717 (pbk.) 
PY  - 1991///
CY  - London
PB  - BPP Publishing
KW  - Management information systems
KW  - Study and teaching
ER  -