Παραπομπή APA
Reichheld, F. F. (2006). The ultimate question: Driving good profits and true growth. Boston, Mass.: Harvard Business School Press.
Παραπομπή Chicago StyleReichheld, Frederick F. The Ultimate Question: Driving Good Profits and True Growth. Boston, Mass.: Harvard Business School Press, 2006.
Παραπομπή MLAReichheld, Frederick F. The Ultimate Question: Driving Good Profits and True Growth. Boston, Mass.: Harvard Business School Press, 2006.
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