TY  - BOOK
AU  - Senn,, James A.
TI  - Analysis and Design of Information Systems / 
SN  - 0-07-123300-8
U1  - 003 
PY  - 1989///
CY  - New York
PB  - Mc Graw Hill
KW  - Information systems
N1  - Includes index
ER  -