Cita APA (7th ed.)
ebrary, Inc. (2003). Coastal and fresh waters. World Health Organization.
Cita Chicago (17th ed.)
ebrary, Inc. Coastal and Fresh Waters. Geneva: World Health Organization, 2003.
Cita MLA (9th ed.)
ebrary, Inc. Coastal and Fresh Waters. World Health Organization, 2003.
Atenció: Aquestes cites poden no estar 100% correctes.