PANDE PETE. (2002). WHAT IS SIX SIGMA. TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED.
Dyfyniad Arddull ChicagoPANDE PETE. WHAT IS SIX SIGMA. NEW DELHI: TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED, 2002.
Dyfyniad MLAPANDE PETE. WHAT IS SIX SIGMA. TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED, 2002.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.