Não informado. (1963). The Physics Teacher. American Association of Physics Teachers.
Lua i Stíl Chicago (17ú heag.)Não informado. The Physics Teacher. College Park, Md: American Association of Physics Teachers, 1963.
Lua MLA (8ú heag.)Não informado. The Physics Teacher. American Association of Physics Teachers, 1963.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.