World Health Organization. (2012). Bulletin of the World Health Organization. WHO.
Citazione stile Chigago Style (17a edizione)World Health Organization. Bulletin of the World Health Organization. Geneva, Switzerland: WHO, 2012.
Citatione MLA (8a ed.)World Health Organization. Bulletin of the World Health Organization. WHO, 2012.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.