Ceylon. Geological Survey. Administration report of the director. Govt. Press.
Lua i Stíl Chicago (17ú heag.)Ceylon. Geological Survey. Administration Report of the Director. Colombo: Govt. Press.
Lua MLA (8ú heag.)Ceylon. Geological Survey. Administration Report of the Director. Govt. Press.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.