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The Unanswered Question IV : The Delights and Dangers of Ambiguity
- Urtea: 1976
- Herrialdea: United States of America
- Generoa: Documentary, Music
- Estudioa: Harvard Productions
- Hitz gakoa: classical music, harvard university, lecture, linguistics, music, leonard bernstein
- Zuzendaria: Humphrey Burton
- Aktoreak: Leonard Bernstein