APA citiranje

Davidow, W. . H. (1989). Total customer service: The ultimate weapon. New York: Harper Perennial.

Trích dẫn kiểu Chicago

Davidow, William H. Total Customer Service: The Ultimate Weapon. New York: Harper Perennial, 1989.

MLA citiranje

Davidow, William H. Total Customer Service: The Ultimate Weapon. New York: Harper Perennial, 1989.

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