APA (7th ed.) Zitazioa

World Health Organization. Regional Office for Europe & ebrary, Inc. (2010). Health and the environment in Europe: Progress assesment. WHO Regional Office for Europe.

Chicago Style (17th ed.) Zitazioa

World Health Organization. Regional Office for Europe eta Inc ebrary. Health and the Environment in Europe: Progress Assesment. Copenhagen: WHO Regional Office for Europe, 2010.

MLA (9th ed.) Zitazioa

World Health Organization. Regional Office for Europe eta Inc ebrary. Health and the Environment in Europe: Progress Assesment. WHO Regional Office for Europe, 2010.