Cita APA (7th ed.)
Alter, S. (2004). Information systems: The foundation of e-business (6th ed.). Pearson.
Cita Chicago (17th ed.)
Alter, Steven. Information Systems: The Foundation of E-business. 6th ed. New Delhi: Pearson, 2004.
Cita MLA (9th ed.)
Alter, Steven. Information Systems: The Foundation of E-business. 6th ed. Pearson, 2004.
Atenció: Aquestes cites poden no estar 100% correctes.