Cita APA (7a ed.)

Pyzdek, T., & Keller, P. A. The Six Sigma handbook: A complete guide for green belts, black belts, and managers at all levels (6th. ed.).

Cita Chicago Style (17a ed.)

Pyzdek, Thomas, y Paul A. Keller. The Six Sigma Handbook: A Complete Guide for Green Belts, Black Belts, and Managers at All Levels. 6th. ed.

Cita MLA (9a ed.)

Pyzdek, Thomas, y Paul A. Keller. The Six Sigma Handbook: A Complete Guide for Green Belts, Black Belts, and Managers at All Levels. 6th. ed.