Bigger, F. J. (1907). Souterrain in Glenduh.
Lua i Stíl Chicago (17ú heag.)Bigger, Francis Joseph. Souterrain in Glenduh. 1907.
Lua MLA (9ú heag.)Bigger, Francis Joseph. Souterrain in Glenduh. 1907.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.