@book{bhlitem110806, title = {Abhandlungen der Königlich Preussischen Geologischen Landesanstalt }, volume = {N.F.:Heft 13 (1892)}, copyright = {Public domain. The BHL considers that this work is no longer under copyright protection.}, url = {https://www.biodiversitylibrary.org/item/110806}, note = {https://www.biodiversitylibrary.org/bibliography/151410}, publisher = {Berlin, }, author = {Königlich-Preussische Geologische Landesanstalt.}, year = {1892}, pages = {188}, }