Andersen Consulting & Flaatten, P. O. (1989). Foundations of business systems. Dryden Press.
Čikaški stil citiranja (17. izdanje)Andersen Consulting i Per O. Flaatten. Foundations of Business Systems. Chicago: Dryden Press, 1989.
MLA način citiranja (9. izdanje)Andersen Consulting i Per O. Flaatten. Foundations of Business Systems. Dryden Press, 1989.
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