APA (7e ed.) Bronvermelding

World Health Organization. (2011). International travel and health. World Health Organization.

Chicago (17e ed.) Bronvermelding

World Health Organization. International Travel and Health. Geneva, Switzerland: World Health Organization, 2011.

MLA (8e ed.) Bronvermelding

World Health Organization. International Travel and Health. World Health Organization, 2011.

Let op: Deze citaties zijn niet altijd 100% accuraat.