World Health Organization. Guidelines for controlling and monitoring the tabacco epidemic.
Lua i Stíl Chicago (17ú heag.)World Health Organization. Guidelines for Controlling and Monitoring the Tabacco Epidemic.
Lua MLA (8ú heag.)World Health Organization. Guidelines for Controlling and Monitoring the Tabacco Epidemic.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.