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Subject (Genre)
- Periodicals26
- Congresses12
- Handbooks, manuals, etc12
- Documentary films8
- Electronic books8
- Feature films7
- Nonfiction films7
- Patents7
- History5
- Cases4
- Popular works4
- Specifications4
- Case studies3
- Computer network resources3
- DVD-Video discs3
- Dictionaries3
- Environmental films3
- Internet resources3
- Statistics3
- Video recordings for the hearing impaired3