Não informado. (1980). Proceedings of the National Academy of Sciences of the United States of America. National Academy of Sciences.
Lua i Stíl Chicago (17ú heag.)Não informado. Proceedings of the National Academy of Sciences of the United States of America. Washington: National Academy of Sciences, 1980.
Lua MLA (8ú heag.)Não informado. Proceedings of the National Academy of Sciences of the United States of America. National Academy of Sciences, 1980.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.