Venture; The Traveler's World. Des Moines, Iowa: Cowles Magazines and Broadcasting, Inc., June 1964

Venture; The Traveler's World. Des Moines, Iowa: Cowles Magazines and Broadcasting, Inc., June 1964, Volume: Gilbert D1147. Robert L. Gilbert First Issues collection, Gilbert. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/527945 Accessed December 27, 2025.