@misc{indiciaed5a4e4a4fdf8, title = {The genetic and endocrinic basis for differences in form and behavior : as elucidated by studies of contrasted pure-line dog breeds and their hybrids — Illustration, Page 257}, year = {1941}, url = {https://www.biodiversitylibrary.org/page/5864729}, note = {Source identifier: page-5864729} }