Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.