Hayler, R., & Nichols, M. (2005). What is six sigma process management? (First edition.). McGraw-Hill Education.
芝加哥风格引文Hayler, Rowland, 与 Michael Nichols. What Is Six Sigma Process Management? First edition. New York: McGraw-Hill Education, 2005.
MLA引文Hayler, Rowland, 与 Michael Nichols. What Is Six Sigma Process Management? First edition. McGraw-Hill Education, 2005.
警告:这些引文格式不一定是100%准确.