World Health Organization. Regional Office for Europe & ebrary, Inc. (2010). Health and the environment in Europe: Progress assesment. WHO Regional Office for Europe.
Παραπομπή σε μορφή Chicago (17η εκδ.)World Health Organization. Regional Office for Europe και Inc ebrary. Health and the Environment in Europe: Progress Assesment. Copenhagen: WHO Regional Office for Europe, 2010.
Παραπομπή σε μορφή MLA (9th εκδ.)World Health Organization. Regional Office for Europe και Inc ebrary. Health and the Environment in Europe: Progress Assesment. WHO Regional Office for Europe, 2010.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.