Biodiversity Heritage Library mailto:biodiversitylibrary@gmail.com Jahrbuch der Königlich Preussischen Geologischen Landesanstalt und Bergakademie zu Berlin für das Jahr ... Königlich Preussische Geologische Landesanstalt und Bergakademie zu Berlin. contributor text issue United States Geological Survey Libraries Program bd.20 (1900) Berlin Simon Schropp'schen Hof-Landkartenhandlung 1881-1908 1880 1905 Annual bd.20 (1900)
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 GER Geology Germany Periodicals QE269 .J25 Jahrbuch der. Königlich Preussischen Geologischen Landesanstalt zu Berlin für das Jahr ... https://www.biodiversitylibrary.org/item/221235 9598058 United States Geological Survey Libraries Program https://www.biodiversitylibrary.org/item/221235 https://www.biodiversitylibrary.org/pagethumb/52983555 bd.20 (1900) Public domain. The BHL considers that this work is no longer under copyright protection. NYG