Bhatt Harish. (2006). Sustainable Tourism/1e. Crescent.
Chicago Style aipamenaBhatt Harish. Sustainable Tourism/1e. New Delhi: Crescent, 2006.
MLA aipamenaBhatt Harish. Sustainable Tourism/1e. Crescent, 2006.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.