APA (7th ed.) Zitazioa

Alter, S. (1999). Information systems: A management perspective. Addison-Wesley.

Chicago Style (17th ed.) Zitazioa

Alter, Steven. Information Systems: A Management Perspective. New York: Addison-Wesley, 1999.

MLA (9th ed.) Zitazioa

Alter, Steven. Information Systems: A Management Perspective. Addison-Wesley, 1999.