APA-viite (7. p.)
Kasper, H., Helsdingen, P. v., & Vries, W. d. (1999). Services marketing management: An international perspective. Wiley.
Chicago-viite (17. p.)
Kasper, Hans, Piet van Helsdingen, ja Wouter de Vries. Services Marketing Management: An International Perspective. Chichester ; New York: Wiley, 1999.
MLA-viite (9. p.)
Kasper, Hans, et al. Services Marketing Management: An International Perspective. Wiley, 1999.
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