APA-viite (7. p.)

Evans, J. R. (2005). An Introduction to SIX SIMA & Process Improvement. Cengage Learning.

Chicago-viite (17. p.)

Evans, James R. An Introduction to SIX SIMA & Process Improvement. New Delhi: Cengage Learning, 2005.

MLA-viite (9. p.)

Evans, James R. An Introduction to SIX SIMA & Process Improvement. Cengage Learning, 2005.