Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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