Não informado. (1984). Environmental Geology and Water Sciences. Springer Verlag.
Lua i Stíl Chicago (17ú heag.)Não informado. Environmental Geology and Water Sciences. New York: Springer Verlag, 1984.
Lua MLA (8ú heag.)Não informado. Environmental Geology and Water Sciences. Springer Verlag, 1984.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.