Dyfyniad APA
Hayes, B. E. (2009). Beyond the ultimate question: A systematic approach to improve customer loyalty. ASQ Quality Press.
Dyfyniad Arddull Chicago
Hayes, Bob E. Beyond the Ultimate Question: A Systematic Approach to Improve Customer Loyalty. Milwaukee, Wisconsin: ASQ Quality Press, 2009.
Dyfyniad MLA
Hayes, Bob E. Beyond the Ultimate Question: A Systematic Approach to Improve Customer Loyalty. ASQ Quality Press, 2009.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.