National Wildlife. Washington, D.C.: National Wildlife Federation, December 1962/January 1963

National Wildlife. Washington, D.C.: National Wildlife Federation, December 1962/January 1963, Volume: Gilbert D691. Robert L. Gilbert First Issues collection, Gilbert. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/526811 Accessed December 27, 2025.