World Health Organization. (2011). Bugs, drugs & smoke: Stories from public health. World Health Organization.
Chicago-Zitierstil (17. Ausg.)World Health Organization. Bugs, Drugs & Smoke: Stories from Public Health. Geneva, Switzerland: World Health Organization, 2011.
MLA-Zitierstil (8. Ausg.)World Health Organization. Bugs, Drugs & Smoke: Stories from Public Health. World Health Organization, 2011.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.