TY  - BOOK
T1  - Understanding information systems :what they do and why we need them /
DA  - 2004.
CY  - Chicago :
AU  - Ratzan, Lee.
CN  - Z665
CN  - Z665
PB  - American Library Association,
PP  - Chicago :
PY  - 2004.
ID  - 273745
KW  - Information science.
KW  - Information storage and retrieval systems.
KW  - Computer science
KW  - Mathematics
SN  - 0838908683 (pbk. : alk. paper)
TI  - Understanding information systems :what they do and why we need them /
LK  - http://www.loc.gov/catdir/toc/ecip049/2003021878.html
UR  - http://www.loc.gov/catdir/toc/ecip049/2003021878.html
ER  -