World Health Organization. Regional Office for Europe & ebrary, Inc. (2010). Sixty years of WHO in Europe. WHO Regional Office for Europe.
Tohutoru Kātū Chicago (17th ed.)World Health Organization. Regional Office for Europe me Inc ebrary. Sixty Years of WHO in Europe. Copenhagen: WHO Regional Office for Europe, 2010.
Tohutoro MLA (9th ed.)World Health Organization. Regional Office for Europe me Inc ebrary. Sixty Years of WHO in Europe. WHO Regional Office for Europe, 2010.
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