APA (7th ed.) Citation

Zinkgraf, S. A. (2006). Six sigma: The first 90 days. Prentice Hall.

Chicago Style (17th ed.) Citation

Zinkgraf, Stephen A. Six Sigma: The First 90 Days. Upper Saddle River, NJ: Prentice Hall, 2006.

MLA (9th ed.) Citation

Zinkgraf, Stephen A. Six Sigma: The First 90 Days. Prentice Hall, 2006.