. Die Molluskenfauna des Schweizerischen Nationalparks. . Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Bütikofer, Ernst, 1885-. [Zürich

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Keywords: ., bookcentury1900, bookdecade1920, bookpublisherzrich, bookyear1920