@book{bhlitem31049, title = {Analysis of development }, copyright = {No known copyright restrictions as determined by scanning institution}, url = {https://www.biodiversitylibrary.org/item/31049}, note = {https://www.biodiversitylibrary.org/bibliography/7321}, publisher = {Philadelphia, Saunders, 1955}, author = {Willier, Benjamin H. (Benjamin Harrison),}, year = {1955}, pages = {762}, keywords = {Embryology}, }