Die land- und süsswasser Conchylien der Vorwelt / von Fridolin Sandberger. Sandberger, Fridolin, 1826-1898 creator text book Wiesbaden : C.W. Kreidel, 1875. 1875
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GER Text & Atlas. Mollusks, Fossil Paleontology QE801 .S26 1875 Museum of Comparative Zoology--Biodiversity Heritage Library digitization project. https://www.biodiversitylibrary.org/bibliography/52407 229475181 31830496 10.5962/bhl.title.52407 YAM