Cita APA (7th ed.)
Marakas, G. M., & O'Brien, J. A. (2013). Introduction to information systems (16th ed.). McGraw-Hill/Irwin.
Cita Chicago (17th ed.)
Marakas, George M., i James A. O'Brien. Introduction to Information Systems. 16th ed. New York, NY: McGraw-Hill/Irwin, 2013.
Cita MLA (9th ed.)
Marakas, George M., i James A. O'Brien. Introduction to Information Systems. 16th ed. McGraw-Hill/Irwin, 2013.
Atenció: Aquestes cites poden no estar 100% correctes.