Não informado. (1990). Aquatic Sciences and Fisheries Abstracts. Cambridge Scientific Abstracts.
Lua i Stíl Chicago (17ú heag.)Não informado. Aquatic Sciences and Fisheries Abstracts. Bethesda, Md: Cambridge Scientific Abstracts, 1990.
Lua MLA (8ú heag.)Não informado. Aquatic Sciences and Fisheries Abstracts. Cambridge Scientific Abstracts, 1990.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.