World Health Organization & ebrary, Inc. (2007). Prevention. World Health Organization.
Lua i Stíl Chicago (17ú heag.)World Health Organization agus Inc ebrary. Prevention. Geneva, Switzerland: World Health Organization, 2007.
Lua MLA (9ú heag.)World Health Organization agus Inc ebrary. Prevention. World Health Organization, 2007.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.