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Subject (Genre)
- Records (Documents)767
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- Correspondence526
- Periodicals503
- Internet videos482
- Educational films357
- Statistics297
- Handbooks, manuals, etc184
- Bibliography155
- Periodical136
- Data sets116
- Nonfiction films114
- Instructional films112
- Popular works92
- Film clips78
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- Lectures75
- Popular Works70
- Streaming videos68