Não informado. (1974). Key-word-index of Wildlife Research. Swiss Wildlife Information Service.
Lua i Stíl Chicago (17ú heag.)Não informado. Key-word-index of Wildlife Research. Zurich, Suíça: Swiss Wildlife Information Service, 1974.
Lua MLA (8ú heag.)Não informado. Key-word-index of Wildlife Research. Swiss Wildlife Information Service, 1974.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.