TY  - GEN
AU  - Valacich, Joseph S.
AU  - George, Joey F.
AU  - Hoffer, Jeffrey A.
TI  - Essentials of systems analysis and design
AV  - QA76.9 S88Val
PY  - 2012///
PB  - Pearson
KW  - System design
KW  - System analysis
N1  - 20533
ER  -