@book{bhlitem15754, title = {Text-book of the embryology of man and mammals }, copyright = {Public domain. The BHL considers that this work is no longer under copyright protection.}, url = {https://www.biodiversitylibrary.org/item/15754}, note = {https://www.biodiversitylibrary.org/bibliography/1087}, publisher = {London, S. Sonnenschein, 1899}, author = {Hertwig, Oscar, and Mark, E. L. (Edward Laurens),}, year = {1899}, pages = {698}, keywords = {Embryology|}, }