Oil and Gas Equipment; The Magazine of Petrochanics. Tulsa, Oklahoma: The Petroleum Publishing Company, November 1954

Oil and Gas Equipment; The Magazine of Petrochanics. Tulsa, Oklahoma: The Petroleum Publishing Company, November 1954, Volume: Gilbert Q166. Robert L. Gilbert First Issues collection, Gilbert. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/526914 Accessed December 26, 2025.