Gaya APA

Feo, J, A, D., Barnard, W, W. (2005). Juran institute's six sigma breakthrough and beyond : quality performance breakthrough methods . nEW dELHI: Tata McGraw-Hill Publishing Company Ltd..

Gaya MLA

Feo, Joseph, A., De., Barnard, William, W.. "Juran institute's six sigma breakthrough and beyond : quality performance breakthrough methods". nEW dELHI: Tata McGraw-Hill Publishing Company Ltd., 2005. Text.