"Colour Inheritance in Sheep V. Dominant Black" by Roberts, J.A.F. and White, R.G, 1930

"Colour Inheritance in Sheep V. Dominant Black" by Roberts, J.A.F. and White, R.G, 1930, Box: 4, Folder: 29. 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/261365 Accessed December 25, 2025.