Não informado. (2003). Bulletin of Engineering Geology and the Environment. Springer.
Lua i Stíl Chicago (17ú heag.)Não informado. Bulletin of Engineering Geology and the Environment. Heidelberg, Alemanha: Springer, 2003.
Lua MLA (8ú heag.)Não informado. Bulletin of Engineering Geology and the Environment. Springer, 2003.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.