Cita APA (7th ed.)

Burch, J. G., & Grudnitski, G. (1989). Information systems: Theory and practice (5th ed.). Wiley.

Cita Chicago (17th ed.)

Burch, John G., i Gary Grudnitski. Information Systems: Theory and Practice. 5th ed. New York: Wiley, 1989.

Cita MLA (9th ed.)

Burch, John G., i Gary Grudnitski. Information Systems: Theory and Practice. 5th ed. Wiley, 1989.