Citazione Stile APA (7a Edizione)

World Health Organization. (1997). Guidelines for drinking-water quality (Second edition.). The Organization.

Citazione stile Chigago Style (17a edizione)

World Health Organization. Guidelines for Drinking-water Quality. Second edition. Geneva: The Organization, 1997.

Citatione MLA (9a ed.)

World Health Organization. Guidelines for Drinking-water Quality. Second edition. The Organization, 1997.