Geognostischer Führer in das Siebengebirge am Rhein.

Dieses geologische Handbuch ist eine unverzichtbare Ressource für Geologen, Hobbyisten und Naturfreunde gleichermaßen. Die Autoren Gerhard vom Rath und Heinrich von Dechen sind bekannt für ihre Arbeit in der Geologie, und dieses Buch ist eine erstaunliche Entdeckung des Siebengebirges am Rhein.
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