Ursus. International Association for Bear Research and Management.
Lua i Stíl Chicago (17ú heag.)Ursus. International Association for Bear Research and Management.
Lua MLA (9ú heag.)Ursus. International Association for Bear Research and Management.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.