Laumer - Reversions (1973), The Star Treasure (1981), A Trace of Memory (1981), Worlds of the Imperium (1975), The Ultimax Man (1979), Box: 12, Folder: 36. 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/230372 Accessed May 20, 2024.