Duckworth, Holly A. A six sigma approach to sustainability : continual improvement for social responsibility / Holly A. Duckworth and Andrea Hoffmeier - Boca Raton, FL : CRC Press, 2016 - xix, 225 p. : ill. ; 24 cm. Includes bibliographical references and index ISBN: 9781498720854 (hbk.) Subjects--Topical Terms: Industrial management--Environmental aspectsSustainability