Não informado. (1984). Issues in Science and Technology. National Academy of Sciences.
Lua i Stíl Chicago (17ú heag.)Não informado. Issues in Science and Technology. Washington: National Academy of Sciences, 1984.
Lua MLA (8ú heag.)Não informado. Issues in Science and Technology. National Academy of Sciences, 1984.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.