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Subject (Genre)
- Congresses78
- Case studies49
- Periodicals24
- Electronic books13
- Bibliography12
- Cross-cultural studies8
- Statistics8
- Handbooks, manuals, etc7
- Handbooks and manuals5
- History4
- Early works to 18002
- Internet videos2
- Census, 18901
- Conference papers and proceedings1
- Data sets1
- Dictionaries1
- Electronic journals1
- Geospatial data1
- Maps1
- Statistics .1