World Health Organization. Regional Office for Europe. (1979). EURO reports and studies. Regional Office for Europe, World Health Organization.
Cita Chicago (17th ed.)World Health Organization. Regional Office for Europe. EURO Reports and Studies. Copenhagen: Regional Office for Europe, World Health Organization, 1979.
Cita MLA (8th ed.)World Health Organization. Regional Office for Europe. EURO Reports and Studies. Regional Office for Europe, World Health Organization, 1979.
Atenció: Aquestes cites poden no estar 100% correctes.