@book{bhlitem18353, title = {Beitrage zur foraminiferenfauna der nordalpinen Eocängebilde }, copyright = {Public domain. The BHL considers that this work is no longer under copyright protection.}, url = {https://www.biodiversitylibrary.org/item/18353}, note = {https://www.biodiversitylibrary.org/bibliography/2084}, publisher = {München, Akademische buchdurckerei von F. Straub, 1868}, author = {Gümbel, Carl Wilhelm von,}, year = {1868}, pages = {172}, keywords = {Foraminifera, Fossil}, }