World Health Organization. (2007). Protection from exposure to second-hand tobacco smoke: Policy recommendations. World Health Organization.
Style de citation Chicago (17e éd.)World Health Organization. Protection from Exposure to Second-hand Tobacco Smoke: Policy Recommendations. Geneva, Switzerland: World Health Organization, 2007.
Style de citation MLA (9e éd.)World Health Organization. Protection from Exposure to Second-hand Tobacco Smoke: Policy Recommendations. World Health Organization, 2007.
Attention : ces citations peuvent ne pas être correctes à 100%.