APA-viite (7. p.)

GUPTA PRAVEEN. (2004). SIX SIGMA BUSINESS SCORECARD. MCGRAW-HILL.

Chicago-viite (17. p.)

GUPTA PRAVEEN. SIX SIGMA BUSINESS SCORECARD. NEW YORK: MCGRAW-HILL, 2004.

MLA-viite (9. p.)

GUPTA PRAVEEN. SIX SIGMA BUSINESS SCORECARD. MCGRAW-HILL, 2004.