Cartwright, R. (2000). Mastering customer relations. Basingstoke: Macmillan.
Trích dẫn kiểu ChicagoCartwright, Roger. Mastering Customer Relations. Basingstoke: Macmillan, 2000.
Deismireacht MLACartwright, Roger. Mastering Customer Relations. Basingstoke: Macmillan, 2000.
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