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Subject
- World maps[remove]209
- Systems and standards31
- Time31
- Azimuthal equidistant projection (Cartography)20
- Distances, etc19
- Maps17
- Diplomatic and consular service, American10
- Earthquakes10
- Geology, Structural6
- World War, 1939-19456
- Volcanoes5
- World maps, Physical5
- Index maps4
- Karte4
- Zeitzone4
- Nautical charts3
- Plate tectonics3
- Agricultural systems2
- Agriculture2
- Cables, Submarine2
