"Island Survivors: The Ecology of the Soay Sheep of St. Kilda," edited by Jewell, P.A, Milner, C, and Boyd, J.M, 1974

"Island Survivors: The Ecology of the Soay Sheep of St. Kilda," edited by Jewell, P.A, Milner, C, and Boyd, J.M, 1974, Box: 4, Folder: 39. 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/261375 Accessed December 25, 2025.