APA aipamena

World Health Organization. (1984). Guide Lines for Dringking - Water Quality. World Health Organisation.

Chicago Style aipamena

World Health Organization. Guide Lines for Dringking - Water Quality. Geneva: World Health Organisation, 1984.

MLA aipamena

World Health Organization. Guide Lines for Dringking - Water Quality. World Health Organisation, 1984.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.