Cita APA (7th ed.)
ebrary, Inc. (2004). Guidelines for drinking-water quality (3rd ed.). World Health Organization.
Cita Chicago (17th ed.)
ebrary, Inc. Guidelines for Drinking-water Quality. 3rd ed. Geneva: World Health Organization, 2004.
Cita MLA (9th ed.)
ebrary, Inc. Guidelines for Drinking-water Quality. 3rd ed. World Health Organization, 2004.
Atenció: Aquestes cites poden no estar 100% correctes.