APA (7 ম সংস্করণ) উদ্ধৃতি

Kumar, D. (2006). Six sigma best practices: A guide to business process excellence for diverse industries. J. Ross Pub..

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Kumar, Dhirendra. Six Sigma Best Practices: A Guide to Business Process Excellence for Diverse Industries. Ft. Lauderdale, Fla.: J. Ross Pub., 2006.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Kumar, Dhirendra. Six Sigma Best Practices: A Guide to Business Process Excellence for Diverse Industries. J. Ross Pub., 2006.