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D. Johann David Schpfs knigl. Preuss. hofraths ... Naturgeschichte der Schildkrten Tab. XVI. B. BHL. Johann David Schpfs knigl Preuss hofraths Naturgeschichte der Schildkrten mit Abbildungen erlutert Tab XVI Illustration biodiversitylibrary org title Keller Johann Christoph Nussbiegel Johann Schpf Johann David Volckart