Panhandle Magazine. Kansas City, Mo.: Panhandle Eastern Pipe Line Company, Autumn 1966

Panhandle Magazine. Kansas City, Mo.: Panhandle Eastern Pipe Line Company, Autumn 1966, Volume: Gilbert E299. Robert L. Gilbert First Issues collection, Gilbert. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/526965 Accessed December 26, 2025.