TY  - GEN
AU  - HAAG, S. 
AU  - CUMMINGS, M. 
TI  - Information systems Essentials
SN  - 978-0-07-351152-8
U1  - LECT 658.403 HAA 
PY  - 2008///
CY  - New York, 
PB  - McGraw-Hill, 
ER  -