Παραπομπή APA

Bergman, B., & Klefsjo, B. (1994). Quality: From customer needs to customer satisfaction. London: McGraw-Hill.

Παραπομπή Chicago Style

Bergman, Bo., and Bengt Klefsjo. Quality: From Customer Needs to Customer Satisfaction. London: McGraw-Hill, 1994.

Παραπομπή MLA

Bergman, Bo., and Bengt Klefsjo. Quality: From Customer Needs to Customer Satisfaction. London: McGraw-Hill, 1994.

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