Andersen, B. (1999). Business process improvement toolbox. ASQ Quality.
Cita Chicago (17th ed.)Andersen, Bjorn. Business Process Improvement Toolbox. Milwaukee: ASQ Quality, 1999.
Cita MLA (9th ed.)Andersen, Bjorn. Business Process Improvement Toolbox. ASQ Quality, 1999.
Atenció: Aquestes cites poden no estar 100% correctes.