Subject
- Educational films6
- Schwarzwalder, John6
- Bush, George5
- Cavett, Carrie N.5
- Cavett, Dick5
- Collins, George5
- Cozens, Robert S.5
- LaFord, Clem5
- Mister Rogers' neighborhood (Television program)5
- Psychologists5
- Public radio5
- Skinner, Burrhus F.5
- Welch, Patrick5
- Arms, George4
- Barthold, Roy4
- Big Bird (Fictitious character)4
- Brock, Ernest4
- Owen, Paul4
- Schlessinger, Paul4
- Strughold, Hubertus J. H.4