Não informado. (1947). Hydraulics Research. Department of Scientific and Industrial Research, Hydraulics Research.
Lua i Stíl Chicago (17ú heag.)Não informado. Hydraulics Research. London: Department of Scientific and Industrial Research, Hydraulics Research, 1947.
Lua MLA (8ú heag.)Não informado. Hydraulics Research. Department of Scientific and Industrial Research, Hydraulics Research, 1947.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.