TY  - GEN
AU  - Senn, James A 
TI  - Analysis & Design of Information Systems 
SN  - 9780070562370  (pb)
U1  - 004.21 SEN/Ana  
PY  - 1989///
CY  - New york
PB  - Mc graw hill book company
KW  - System design
ER  -