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Author/Creator
- National Audiovisual Center33
- Bowen, B. B. (Benjamin B.), 1819-19056
- Punch (London, England), publisher6
- Reid, Seerley6
- Evans, Shirley King5
- National Medical Audiovisual Center5
- CBS Inc., production company4
- Harris, James L4
- Keene, Charles, 1823-18914
- National Institute of Mental Health (U.S.)4
- Pennsylvania. Dept. of Public Instruction4
- Roberts, Jean, 1918-4
- United States. National Aeronautics and Space Administration4
- United States. National Archives and Records Administration4
- United States. Occupational Safety and Health Administration4
- Cincinnati Public Schools3
- Cornell Cooperative Extension3
- Crook, Mason N., 1904-3
- Deese, James, 1921-19993
- Dent, Ellsworth Charles, 1899-3