@book{bhlitem22429, title = {Lehrbuch der Entwicklungsgeschichte des Menschen und Wirbelthiere }, copyright = {NOT_IN_COPYRIGHT}, url = {https://www.biodiversitylibrary.org/item/22429}, note = {https://www.biodiversitylibrary.org/bibliography/3980}, publisher = {Jena, Gustav Fischer, 1896}, author = {Hertwig, Oscar,}, year = {1896}, pages = {652}, keywords = {Embryology}, }