Continental Trailways. Dallas, Texas: Continental Trailways Bus System, Spring-Summer 1964

Continental Trailways. Dallas, Texas: Continental Trailways Bus System, Spring-Summer 1964, Volume: Gilbert C120. Robert L. Gilbert First Issues collection, Gilbert. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/525596 Accessed December 26, 2025.