Não informado. (1930). Reviews of Modern Physics. American Physical Society.
Lua i Stíl Chicago (17ú heag.)Não informado. Reviews of Modern Physics. Minneapolis, Minn: American Physical Society, 1930.
Lua MLA (8ú heag.)Não informado. Reviews of Modern Physics. American Physical Society, 1930.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.