Daniels - One Angry Man (1970), Operation Ax (1966), Operation K (1964), Operation K (1964), Operation N (1964-[19]66), Box: 4, Folder: 41. Corporate Papers of the Robert Mills Literary Agency, MS 307. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/230105 Accessed May 19, 2024.