Gaya APA

PYZDEK, T. (2003). The Six Sigma Handbook Revised and Expanded A Complete Guide for Green Belts, Black Belts, and Managers at All Levels E-BOOK . USA: The McGraw-Hill Companies.

Gaya MLA

PYZDEK, THOMAS. "The Six Sigma Handbook Revised and Expanded A Complete Guide for Green Belts, Black Belts, and Managers at All Levels E-BOOK". USA: The McGraw-Hill Companies, 2003. Text.