Lua APA (7ú heag.)

KASPER HANS. (2006). SERVICES MARKETING MANAGEMENT (2.). JOHN WILEY & SONS.

Lua i Stíl Chicago (17ú heag.)

KASPER HANS. SERVICES MARKETING MANAGEMENT. 2. ENGLAND: JOHN WILEY & SONS, 2006.

Lua MLA (9ú heag.)

KASPER HANS. SERVICES MARKETING MANAGEMENT. 2. JOHN WILEY & SONS, 2006.

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