The Journal of the Royal Society for the Encouragement of Arts Manufactures and Commerce, February 1968, 1968-02

The Journal of the Royal Society for the Encouragement of Arts Manufactures and Commerce, February 1968, 1968-02, Box: 3, Folder: 74. Personal Papers of Elmer V. McCollum, PP 120. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/188954 Accessed December 25, 2025.