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Are you Karl Sapper, author of the books below?
The Verapaz in the Sixteenth and Seventeenth Centuries by Karl Sapper Das Schutzgebiet Deutsch-Neu-Guinea in Der Gegenwart by Karl Sapper Die Bevölkerung Mittelamerikas by Karl Sapper Katalog der geschichtlichen Vulkanausbrüche (Schriften der Wi... by Karl Sapper Geographische Kulturkunde [Rassen, V Lker, Staaten, Wirtschaf... by Karl Sapper The old Indian Settlements and Architectural Structures in No... by Karl Sapper Wirtschaftsgeographie von Mexico (Classic Reprint) by Karl Sapper Mittelamerikanische Reisen und Studien aus den Jahren 1888 bi... by Karl Sapper Geologischer Bau und Landschaftsbild (Classic Reprint) by Karl Sapper In Den Vulcangebieten Mittelamerikas Und Westindiens by Karl Sapper


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