Não informado. (1959). Science Education News. American Association for the Advancement of Science.
Lua i Stíl Chicago (17ú heag.)Não informado. Science Education News. Washington: American Association for the Advancement of Science, 1959.
Lua MLA (8ú heag.)Não informado. Science Education News. American Association for the Advancement of Science, 1959.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.