APA aipamena

Bhatt Harish. (2006). Sustainable Tourism/1e. Crescent.

Chicago Style aipamena

Bhatt Harish. Sustainable Tourism/1e. New Delhi: Crescent, 2006.

MLA aipamena

Bhatt Harish. Sustainable Tourism/1e. Crescent, 2006.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.