Não informado. (1907). British Birds. Macmillan Journals.
Lua i Stíl Chicago (17ú heag.)Não informado. British Birds. London: Macmillan Journals, 1907.
Lua MLA (8ú heag.)Não informado. British Birds. Macmillan Journals, 1907.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.