Burnie, D. (1995). Aves. Verbo.
Lua i Stíl Chicago (17ú heag.)Burnie, David. Aves. Verbo, 1995.
Lua MLA (8ú heag.)Burnie, David. Aves. Verbo, 1995.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
Lua APA (7ú heag.)