Ott, E. R. (1975). Process quality control: Troubleshooting and interpretation of data. McGraw-Hill.
Cita Chicago (17th ed.)Ott, Ellis R. Process Quality Control: Troubleshooting and Interpretation of Data. New York: McGraw-Hill, 1975.
Cita MLA (9th ed.)Ott, Ellis R. Process Quality Control: Troubleshooting and Interpretation of Data. McGraw-Hill, 1975.
Atenció: Aquestes cites poden no estar 100% correctes.