APA
Jay Arthur & Green belt training made easy, . (2003). The Six sigma : instructor guide. Macmillan India Limited, Denver, Colorado: .
Chicago
Jay Arthur & Green belt training made easy, . 2003. The Six sigma : instructor guide. Macmillan India Limited, Denver, Colorado: .
Harvard
Jay Arthur & Green belt training made easy, . (2003). The Six sigma : instructor guide. Macmillan India Limited, Denver, Colorado: .
MLA
Jay Arthur & Green belt training made easy, . The Six sigma : instructor guide. Macmillan India Limited, Denver, Colorado: . 2003.