APA aipamena

ECKES GEORGE. (2003). SIX SIGMA FOR EVERYONE. JOHN WILEY & SONS, INC.

Chicago Style aipamena

ECKES GEORGE. SIX SIGMA FOR EVERYONE. NEW JERSEY: JOHN WILEY & SONS, INC, 2003.

MLA aipamena

ECKES GEORGE. SIX SIGMA FOR EVERYONE. JOHN WILEY & SONS, INC, 2003.