Dyfyniad APA

Walker, D. (1990). Customer first: A strategy for quality service. Gower.

Dyfyniad Arddull Chicago

Walker, Denis. Customer First: A Strategy for Quality Service. Aldershot, Hants, England: Gower, 1990.

Dyfyniad MLA

Walker, Denis. Customer First: A Strategy for Quality Service. Gower, 1990.

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