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11Published 1913Subjects: “...Polar regions--Discovery and exploration--History...”
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13by R. L. Tokar, W. C. Feldman, T. H. Prettyman, K. R. Moore, D. J. Lawrence, R. C. Elphic, M. A. Kreslavsky, J. W. Head Iii, J. F. Mustard, W. V. BoyntonSubjects: “...Polar regions...”
Published 1904
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18by Mayer, Theodor Heinrich (1884–1949). Autor, Universum-Verlags-Gesellschaft (Wiedeń). WydawcaSubjects: “...polar regions...”
Published 1947
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