Não informado. (1980). Science 80. American Association for the Advancement of Science.
Lua i Stíl Chicago (17ú heag.)Não informado. Science 80. Washington: American Association for the Advancement of Science, 1980.
Lua MLA (8ú heag.)Não informado. Science 80. American Association for the Advancement of Science, 1980.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.