Não informado. (1949). Lund studies in geography. University of Lund, Department of Geography.
Chicago-referens (17:e uppl.)Não informado. Lund Studies in Geography. Lund, Suecia: University of Lund, Department of Geography, 1949.
MLA-referens (8:e uppl.)Não informado. Lund Studies in Geography. University of Lund, Department of Geography, 1949.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.