Não informado. (1960). Conservationist. New York State Department of Environmental Conservation.
Lua i Stíl Chicago (17ú heag.)Não informado. Conservationist. Albany, NY: New York State Department of Environmental Conservation, 1960.
Lua MLA (8ú heag.)Não informado. Conservationist. New York State Department of Environmental Conservation, 1960.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.