Cita APA (7th ed.)

Gronroos Christian. (2016). Services Management and Marketing (3.). Wiley.

Cita Chicago (17th ed.)

Gronroos Christian. Services Management and Marketing. 3. New Delhi: Wiley, 2016.

Cita MLA (9th ed.)

Gronroos Christian. Services Management and Marketing. 3. Wiley, 2016.