Pyzdek,Thomas. (2010). The Six Sigma Handbook (3rd.). Tata McGraw Hill Publ.
Chicago Style aipamenaPyzdek,Thomas. The Six Sigma Handbook. 3rd. New delhi: Tata McGraw Hill Publ, 2010.
MLA aipamenaPyzdek,Thomas. The Six Sigma Handbook. 3rd. Tata McGraw Hill Publ, 2010.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.