Não informado. (1961). Selected Papers. Royal Netherlands Tuberculosis Association.
Lua i Stíl Chicago (17ú heag.)Não informado. Selected Papers. The Hague, Holanda: Royal Netherlands Tuberculosis Association, 1961.
Lua MLA (8ú heag.)Não informado. Selected Papers. Royal Netherlands Tuberculosis Association, 1961.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.