Não informado. (1953). Official Documents. Pan American Health Organization.
Lua i Stíl Chicago (17ú heag.)Não informado. Official Documents. Washington: Pan American Health Organization, 1953.
Lua MLA (8ú heag.)Não informado. Official Documents. Pan American Health Organization, 1953.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.