"The Etiology and Inheritance of Inequalities in the Jaws of Sheep" by Norby, Julius E. (et. al.), 1945

"The Etiology and Inheritance of Inequalities in the Jaws of Sheep" by Norby, Julius E. (et. al.), 1945, Box: 4, Folder: 21. Personal papers of John "Jack" A. Weir, PP 404. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/261357 Accessed December 24, 2025.