Gitlow, H., & Levine, D. M. (2012). Six Sigma for green belts and champions: Foundations, DMAIC, tools, cases, and certification (Tenth printing.). Pearson Education, Inc.
Chicago-Zitierstil (17. Ausg.)Gitlow, Howard, und David M. Levine. Six Sigma for Green Belts and Champions: Foundations, DMAIC, Tools, Cases, and Certification. Tenth printing. Upper Saddle River, NJ: Pearson Education, Inc, 2012.
MLA-Zitierstil (9. Ausg.)Gitlow, Howard, und David M. Levine. Six Sigma for Green Belts and Champions: Foundations, DMAIC, Tools, Cases, and Certification. Tenth printing. Pearson Education, Inc, 2012.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.