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Subject (Genre)
- Electronic books16
- Early works to 180011
- Sources9
- History6
- Educational films5
- Film excerpts5
- Conference papers and proceedings4
- Documentary films4
- Nonfiction films4
- Short films4
- Biography2
- Archives1
- Constitution1
- Controversial literature1
- Essays1
- Interviews1
- Nonfiction television programs1
- Online archives1
- Periodicals1
- Unedited footage1