TY  - BOOK
T1  - Information systems methodologies a framework for understanding
A2  - Olle, T. William
LA  - English
PP  - Wokingham, England
PB  - Addison-Wesley
YR  - 1991
ED  - 2nd ed.
UL  - https://ds.mainlib.upd.edu.ph/Record/UP-99796217602547377
OP  - 401
CN  - QA 76.9 S88 I53 1991
SN  - 0201544431
KW  - System design.
KW  - Information storage and retrieval systems.
ER  -