Schonberger, R. J. (1997). Operations management: Customer-focused principles. Irwin.
Chicago-čujuhus (17. p.)Schonberger, Richard J. Operations Management: Customer-focused Principles. Chicago: Irwin, 1997.
MLA-čujuhus (9. p.)Schonberger, Richard J. Operations Management: Customer-focused Principles. Irwin, 1997.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.