Kasper, H., Gabbott, M., & Helsdingen, P. v. (2006). Services marketing management: A strategic perspective (2d ed.). Chichester, West Sussex, England Hoboken, NJ: John Wiley & Sons.
Παραπομπή Chicago StyleKasper, Hans., Mark Gabbott, και Piet van Helsdingen. Services Marketing Management: A Strategic Perspective. 2d ed. Chichester, West Sussex, England Hoboken, NJ: John Wiley & Sons, 2006.
Παραπομπή MLAKasper, Hans., Mark Gabbott, και Piet van Helsdingen. Services Marketing Management: A Strategic Perspective. 2d ed. Chichester, West Sussex, England Hoboken, NJ: John Wiley & Sons, 2006.
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