Drake, K. (1981). Geochemistry of tin, tungsten and molybdenum in Swedish Proterozoic granitoids: Its potential use in regional mineral exploration. Dept. of Geology, Stockholm University.
Lua i Stíl Chicago (17ú heag.)Drake, Karl-Magnus. Geochemistry of Tin, Tungsten and Molybdenum in Swedish Proterozoic Granitoids: Its Potential Use in Regional Mineral Exploration. Stockholm: Dept. of Geology, Stockholm University, 1981.
Lua MLA (8ú heag.)Drake, Karl-Magnus. Geochemistry of Tin, Tungsten and Molybdenum in Swedish Proterozoic Granitoids: Its Potential Use in Regional Mineral Exploration. Dept. of Geology, Stockholm University, 1981.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.