Não informado. (1981). Colonial waterbirds. Colonial Waterbirds Society.
Lua i Stíl Chicago (17ú heag.)Não informado. Colonial Waterbirds. De Leon Springs, Fla: Colonial Waterbirds Society, 1981.
Lua MLA (8ú heag.)Não informado. Colonial Waterbirds. Colonial Waterbirds Society, 1981.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.