Não informado. (1958). Stockholm contributions in geology. Stockholm University.
Lua i Stíl Chicago (17ú heag.)Não informado. Stockholm Contributions in Geology. Stockholm: Stockholm University, 1958.
Lua MLA (8ú heag.)Não informado. Stockholm Contributions in Geology. Stockholm University, 1958.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.