APA aipamena

Medlik, S. (2015). Understanding tourism. Butterworth-Heinemann.

Chicago Style aipamena

Medlik, S. Understanding Tourism. Butterworth-Heinemann, 2015.

MLA aipamena

Medlik, S. Understanding Tourism. Butterworth-Heinemann, 2015.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.