Carroll, Charles T. Six sigma for powerful improvement : a green belt DMAIC training system with software tools and a 25-lesson course / Charles T. Carroll - Boca Raton, FL : CRC Press, 2013 - xlix, 473 p. : ill. ; 29 cm. + 1 CD-ROM Includes bibliographical references and index ISBN: 9781466564695 (hbk.) Subjects--Topical Terms: Six sigma (Quality control standard)--Textbooks