Ballabh,Anand. (2005). Fundamentals of travel and tourism. Akansha.
Chicago Style aipamenaBallabh,Anand. Fundamentals of Travel and Tourism. New Delhi: Akansha, 2005.
MLA aipamenaBallabh,Anand. Fundamentals of Travel and Tourism. Akansha, 2005.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.