World Health Organization. (2012). World health statistics 2012. World Health Organization.
Lua i Stíl Chicago (17ú heag.)World Health Organization. World Health Statistics 2012. Geneva, Switzerland: World Health Organization, 2012.
Lua MLA (8ú heag.)World Health Organization. World Health Statistics 2012. World Health Organization, 2012.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.