Forrest, H. E. (1932). The glaciation of Ireland.
Lua i Stíl Chicago (17ú heag.)Forrest, H. Edward. The Glaciation of Ireland. 1932.
Lua MLA (9ú heag.)Forrest, H. Edward. The Glaciation of Ireland. 1932.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
