Zemke, R. (1989). The service edge: 101 companies that profit customer care. Penguin.
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Chicago Style (17th ed.) Citation
Zemke, Ron. The Service Edge: 101 Companies That Profit Customer Care. New York: Penguin, 1989.
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MLA引文
Zemke, Ron. The Service Edge: 101 Companies That Profit Customer Care. Penguin, 1989.
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警告：這些引文格式不一定是100％准確.