Evans, J. R., & Lindsay, W. M. (2015). An introduction to six sigma & process improvement (Second edition.). Cengage Learning.
Cita Chicago (17th ed.)Evans, James R., i William M. Lindsay. An Introduction to Six Sigma & Process Improvement. Second edition. Stamford, Connecticut: Cengage Learning, 2015.
Cita MLA (9th ed.)Evans, James R., i William M. Lindsay. An Introduction to Six Sigma & Process Improvement. Second edition. Cengage Learning, 2015.
Atenció: Aquestes cites poden no estar 100% correctes.