Cita APA (7a ed.)
(2011). Guidelines for drinking-water quality (4th ed.). WHO.
Cita Chicago Style (17a ed.)
Guidelines for Drinking-water Quality. 4th ed. Geneva: WHO, 2011.
Cita MLA (9a ed.)
Guidelines for Drinking-water Quality. 4th ed. WHO, 2011.
Precaución: Estas citas no son 100% exactas.