Organizacin̤ Mundial de la Salud. Guidelines for drinking-water quality.
Cita Chicago (17th ed.)Organizacin̤ Mundial de la Salud. Guidelines for Drinking-water Quality.
Cita MLA (9th ed.)Organizacin̤ Mundial de la Salud. Guidelines for Drinking-water Quality.
Atenció: Aquestes cites poden no estar 100% correctes.