George, M. L. (2003). Lean Six Sigma for service: How to use Lean Speed and Six Sigma Quality to improve services and transactions. McGraw-Hill.
Chicago-Zitierstil (17. Ausg.)George, Michael L. Lean Six Sigma for Service: How to Use Lean Speed and Six Sigma Quality to Improve Services and Transactions. New York: McGraw-Hill, 2003.
MLA-Zitierstil (9. Ausg.)George, Michael L. Lean Six Sigma for Service: How to Use Lean Speed and Six Sigma Quality to Improve Services and Transactions. McGraw-Hill, 2003.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.