Sidgwick, F. (1908). Ancient carols. Sturgis & Walton.
Lua i Stíl Chicago (17ú heag.)Sidgwick, Frank. Ancient Carols. New York: Sturgis & Walton, 1908.
Lua MLA (8ú heag.)Sidgwick, Frank. Ancient Carols. Sturgis & Walton, 1908.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.