Lua APA (7ú heag.)

Pyzdek, T. (2003). The six sigma handbook. McGraw-Hill.

Lua i Stíl Chicago (17ú heag.)

Pyzdek, Thomas. The Six Sigma Handbook. McGraw-Hill, 2003.

Lua MLA (8ú heag.)

Pyzdek, Thomas. The Six Sigma Handbook. McGraw-Hill, 2003.

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