APA-viite (7. p.)

BREYFOGLE III FORREST. (2003). IMPLEMENTING SIX SIGMA (2ND.). NEW JERSEY.

Chicago-viite (17. p.)

BREYFOGLE III FORREST. IMPLEMENTING SIX SIGMA. 2ND. JOHN WILEY AND SONS: NEW JERSEY, 2003.

MLA-viite (9. p.)

BREYFOGLE III FORREST. IMPLEMENTING SIX SIGMA. 2ND. NEW JERSEY, 2003.