World Health Organization. Regional Office for Europe & ebrary, Inc. (2010). Sechzig Jahre WHO in Europa. WHO-Regionalbüro für Europa.
Chicago (17e ed.) BronvermeldingWorld Health Organization. Regional Office for Europe en Inc ebrary. Sechzig Jahre WHO in Europa. Kopenhagen: WHO-Regionalbüro für Europa, 2010.
MLA (9e ed.) BronvermeldingWorld Health Organization. Regional Office for Europe en Inc ebrary. Sechzig Jahre WHO in Europa. WHO-Regionalbüro für Europa, 2010.
Let op: Deze citaties zijn niet altijd 100% accuraat.