Cita APA

World Health Organization. Regional Office for Europe & ebrary, Inc. (2010). Sixty years of WHO in Europe. WHO Regional Office for Europe.

Citación estilo Chicago

World Health Organization. Regional Office for Europe and Inc ebrary. Sixty Years of WHO in Europe. Copenhagen: WHO Regional Office for Europe, 2010.

Cita MLA

World Health Organization. Regional Office for Europe and Inc ebrary. Sixty Years of WHO in Europe. WHO Regional Office for Europe, 2010.