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Subject (Genre)
- Congresses145
- Handbooks, manuals, etc38
- Pictorial works22
- Catalogs17
- Maps17
- Case studies12
- Periodicals12
- Bibliography10
- Identification10
- Atlases7
- Audio-visual aids7
- Conference papers and proceedings7
- Textbooks7
- Video recordings for people with visual disabilities6
- Animated films5
- Geographic information systems5
- Short films5
- Software5
- Statistics5
- Directories4