Berry, L. L., & Parasuraman, A. (1991). Marketing services: Competing through quality. The Free Press.
Citace podle Chicago (17th ed.)Berry, Leonard L., a A. Parasuraman. Marketing Services: Competing Through Quality. New York: The Free Press, 1991.
Citace podle MLA (9th ed.)Berry, Leonard L., a A. Parasuraman. Marketing Services: Competing Through Quality. The Free Press, 1991.
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