Não informado. (1971). Influenza Bibliography. National Institute for Medical Research.
Lua i Stíl Chicago (17ú heag.)Não informado. Influenza Bibliography. London: National Institute for Medical Research, 1971.
Lua MLA (8ú heag.)Não informado. Influenza Bibliography. National Institute for Medical Research, 1971.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.