TY  - BOOK
AU  - James A. O'Brien
AU  - George M. Marakas
TI  - Introduction to information systems
SN  - 9780073376776
AV  - HF5548.2.O23 2010 
PY  - 2010///
CY  - New York
PB  - McGraw-Hill
KW  - information systems
N1  - includes index and bibliography
ER  -