Não informado. (1964). Ornithological monographs. American Ornithologists' Union.
Lua i Stíl Chicago (17ú heag.)Não informado. Ornithological Monographs. Washington: American Ornithologists' Union, 1964.
Lua MLA (8ú heag.)Não informado. Ornithological Monographs. American Ornithologists' Union, 1964.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.