Não informado. (1903). Science abstracts. Institution of Electrical Engineers.
Lua i Stíl Chicago (17ú heag.)Não informado. Science Abstracts. London: Institution of Electrical Engineers, 1903.
Lua MLA (8ú heag.)Não informado. Science Abstracts. Institution of Electrical Engineers, 1903.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.