Dokumentuaren aipamena

APA (7th ed.) Zitazioa
Timm, P. R. (2002). 50 powerful ideas you can use to keep your customers (3rd ed.). Career Press.
Chicago Style (17th ed.) Zitazioa
Timm, Paul R. 50 Powerful Ideas You Can Use to Keep Your Customers. 3rd ed. Franklin Lakes, NJ: Career Press, 2002.
MLA (9th ed.) Zitazioa
Timm, Paul R. 50 Powerful Ideas You Can Use to Keep Your Customers. 3rd ed. Career Press, 2002.
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