Pyzdek,Thomas. (2010). The Six Sigma Handbook (3rd.). Tata McGraw Hill Publ.
Cita Chicago (17th ed.)Pyzdek,Thomas. The Six Sigma Handbook. 3rd. New delhi: Tata McGraw Hill Publ, 2010.
Cita MLA (9th ed.)Pyzdek,Thomas. The Six Sigma Handbook. 3rd. Tata McGraw Hill Publ, 2010.
Atenció: Aquestes cites poden no estar 100% correctes.