Não informado. (1964). Bioscience. American Institute of Biological Sciences.
Lua i Stíl Chicago (17ú heag.)Não informado. Bioscience. Washington: American Institute of Biological Sciences, 1964.
Lua MLA (8ú heag.)Não informado. Bioscience. American Institute of Biological Sciences, 1964.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.