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Subject
- Administrative and political divisions6
- Geology4
- Maps3
- History2
- Antiquities1
- Boundaries1
- Charts, diagrams, etc1
- Cities and towns1
- Climate1
- Coasts1
- Economic aspects1
- Economic conditions1
- Economic history1
- Economics1
- Environmental geology1
- Geology, Structural1
- Historic sites1
- Invasions1
- Meteorology, Maritime1
- Mines and mineral resources1
