APA引文

Keller, P. A. (2011). Six Sigma demystified (Second edition.). McGraw-Hill Education.

芝加哥风格引文

Keller, Paul A. Six Sigma Demystified. Second edition. New York: McGraw-Hill Education, 2011.

MLA引文

Keller, Paul A. Six Sigma Demystified. Second edition. McGraw-Hill Education, 2011.