World Health Organization. (1995). International travel and health: Vaccination requirements and health advice. World Health Organization.
Style de citation Chicago (17e éd.)World Health Organization. International Travel and Health: Vaccination Requirements and Health Advice. Geneva: World Health Organization, 1995.
Style de citation MLA (8e éd.)World Health Organization. International Travel and Health: Vaccination Requirements and Health Advice. World Health Organization, 1995.
Attention : ces citations peuvent ne pas être correctes à 100%.