Barbour, R. H. The mystery of the Sea-Lark.
Lua i Stíl Chicago (17ú heag.)Barbour, Ralph Henry. The Mystery of the Sea-Lark.
Lua MLA (9ú heag.)Barbour, Ralph Henry. The Mystery of the Sea-Lark.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.