Genre
Databases
Maps
82
Academic theses
31
Bathymetric maps
5
Statistics
4
Topographic maps
4
Catalogs
3
Geographic information systems
3
Remote-sensing images
3
Atlases
2
Bibliographies
2
Illustrated works
2
Remote-sensing maps
2
Software
2
Technical reports
2
Digital maps
1
Directories
1
Gazetteers
1
Geospatial data
1
Globes
1
Graphs
1
Index maps
1
Observations
1
Photomaps
1
Raster data
1
Vector data
1