Pyzdek, T. (2003). The six sigma handbook: A complete guide for green belts, black belts and managers at all levels. New York; Chicago: McGraw-Hill.
Παραπομπή Chicago StylePyzdek, Thomas. The Six Sigma Handbook: A Complete Guide for Green Belts, Black Belts and Managers At All Levels. New York; Chicago: McGraw-Hill, 2003.
Παραπομπή MLAPyzdek, Thomas. The Six Sigma Handbook: A Complete Guide for Green Belts, Black Belts and Managers At All Levels. New York; Chicago: McGraw-Hill, 2003.
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