APA aipamena

Holden Andrew. (2008). Environment and Tourism/2e (2nd ed.). Routledge.

Chicago Style aipamena

Holden Andrew. Environment and Tourism/2e. 2nd ed. Routledge, 2008.

MLA aipamena

Holden Andrew. Environment and Tourism/2e. 2nd ed. Routledge, 2008.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.