Cookoo Nuts; Fun with Popular Sayings. New York, N.Y.: First Publications, Inc., March/April 1941

Cookoo Nuts; Fun with Popular Sayings. New York, N.Y.: First Publications, Inc., March/April 1941, Volume: Gilbert D226. Robert L. Gilbert First Issues collection, Gilbert. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/525600 Accessed December 27, 2025.