The ultimate question 2.0 : how net promoter companies thrive in a customer-driven world / Reichheld, Frederick F.
050 HF5415 00005 R439 02011
100 Reichheld, Frederick F.
245 The ultimate question 2.0 : how net promoter companies thrive in a customer-driven world
260 Boston, Mass. : Harvard Business Press, c2011.