World Health Organization. Regional Office for Europe & ebrary, Inc. (2010). Health and the environment in Europe: Progress assesment. WHO Regional Office for Europe.
Chicago-referens (17:e uppl.)World Health Organization. Regional Office for Europe och Inc ebrary. Health and the Environment in Europe: Progress Assesment. Copenhagen: WHO Regional Office for Europe, 2010.
MLA-referens (9:e uppl.)World Health Organization. Regional Office for Europe och Inc ebrary. Health and the Environment in Europe: Progress Assesment. WHO Regional Office for Europe, 2010.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.