Sturkell, E. (1998). The origin of the marine Lockne impact structure, Jämtland. Dept. of Geology and Geochemistry, Stockholm University.
Citace podle Chicago (17th ed.)Sturkell, Erik. The Origin of the Marine Lockne Impact Structure, Jämtland. Stockholm, Sweden: Dept. of Geology and Geochemistry, Stockholm University, 1998.
Citace podle MLA (8th ed.)Sturkell, Erik. The Origin of the Marine Lockne Impact Structure, Jämtland. Dept. of Geology and Geochemistry, Stockholm University, 1998.
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