Παραπομπή APA
Chang, R. Y., & Kelly, P. K. (1994). Satisfying internal customers first !: A practical guide to improving internal and external customer satisfaction. London: Kogan Page.
Παραπομπή Chicago StyleChang, Richard Y., and P. Keith Kelly. Satisfying Internal Customers First !: A Practical Guide to Improving Internal and External Customer Satisfaction. London: Kogan Page, 1994.
Παραπομπή MLAChang, Richard Y., and P. Keith Kelly. Satisfying Internal Customers First !: A Practical Guide to Improving Internal and External Customer Satisfaction. London: Kogan Page, 1994.
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