Schonberger, R. J. (1997). Operations management: Customer-focused principles. Irwin.
Čikaški stil citiranja (17. izdanje)Schonberger, Richard J. Operations Management: Customer-focused Principles. Chicago: Irwin, 1997.
MLA način citiranja (9. izdanje)Schonberger, Richard J. Operations Management: Customer-focused Principles. Irwin, 1997.
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