Lua APA (7ú heag.)

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

Lua i Stíl Chicago (17ú heag.)

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

Lua MLA (9ú heag.)

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

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