APA (7th ed.) Citation

Keller, P. A. (2011). Six sigma demystified (2nd ed.). McGraw-Hill Professional.

Chicago Style (17th ed.) Citation

Keller, Paul A. Six Sigma Demystified. 2nd ed. Maidenhead: McGraw-Hill Professional, 2011.

MLA (8th ed.) Citation

Keller, Paul A. Six Sigma Demystified. 2nd ed. McGraw-Hill Professional, 2011.