Walker - Correspondence (1978-[19]80) - How to Advertise (1978), The Whole Birth Catalogue (1977), Self-Testing for Health Maintenance (1979), How Not to Have a Heart Attack (1979, 1981), Chelation Therapy (1979), Box: 23, Folder: 29. 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/230736 Accessed May 09, 2024.