Cita APA (7th ed.)

Gordon, J. R., & Gordon, S. R. (1999). Information systems: A management approach (2nd ed.). Dryden Press.

Cita Chicago (17th ed.)

Gordon, Judith R., i Steven R. Gordon. Information Systems: A Management Approach. 2nd ed. Fort Worth, Tex: Dryden Press, 1999.

Cita MLA (9th ed.)

Gordon, Judith R., i Steven R. Gordon. Information Systems: A Management Approach. 2nd ed. Dryden Press, 1999.