@book{bhlitem263071, title = {Abhandlungen der Königlich Preussischen Geologischen Landesanstalt }, volume = {NF.:Heft 68(1912)}, copyright = {Public domain. The BHL considers that this work is no longer under copyright protection}, url = {https://www.biodiversitylibrary.org/item/263071}, note = {https://www.biodiversitylibrary.org/bibliography/151410}, publisher = {Berlin, }, author = {Königlich-Preussische Geologische Landesanstalt.}, year = {1912}, pages = {228}, }