@misc{indiciae1a4f9322a7fd, 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 56}, year = {1941}, url = {https://www.biodiversitylibrary.org/page/5864242}, note = {Source identifier: page-5864242} }