Cita APA (7th ed.)
O'Brien, J. A. (2004). Management information systems (6th ed.). McGraw-Hill.
Cita Chicago (17th ed.)
O'Brien, James A. Management Information Systems. 6th ed. Boston: McGraw-Hill, 2004.
Cita MLA (9th ed.)
O'Brien, James A. Management Information Systems. 6th ed. McGraw-Hill, 2004.
Atenció: Aquestes cites poden no estar 100% correctes.