APA način citiranja (7. izdanje)

Pyzdek, T., & Keller, P. A. (2014). Six Sigma handbook (Fourth edition.). McGraw-Hill Education.

Čikaški stil citiranja (17. izdanje)

Pyzdek, Thomas, i Paul A. Keller. Six Sigma Handbook. Fourth edition. New York: McGraw-Hill Education, 2014.

MLA način citiranja (9. izdanje)

Pyzdek, Thomas, i Paul A. Keller. Six Sigma Handbook. Fourth edition. McGraw-Hill Education, 2014.