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Subject (Genre)
- Case studies38
- Handbooks, manuals, etc38
- Statistics28
- Legislative hearings27
- Periodicals27
- Directories16
- Congresses13
- Educational films13
- Bibliography12
- Internet videos12
- Electronic books6
- Forms6
- Interviews6
- Nonfiction films5
- Blank forms4
- Instructional films4
- Databases3
- Documentary television programs3
- Early works to 18003
- Encyclopedias3