Johansson, Å. (1984). The geology and genesis of lead-zinc veins in Sweden. Dept. of Geology, Stockholm University.
Lua i Stíl Chicago (17ú heag.)Johansson, Åke. The Geology and Genesis of Lead-zinc Veins in Sweden. Stockholm, Sweden: Dept. of Geology, Stockholm University, 1984.
Lua MLA (8ú heag.)Johansson, Åke. The Geology and Genesis of Lead-zinc Veins in Sweden. Dept. of Geology, Stockholm University, 1984.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.