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- History17
- Maps, Military14
- Administrative and political divisions12
- Geology, Structural8
- Geology6
- Maps5
- Mines and mineral resources5
- Economic conditions4
- Ethnology4
- Geology, Stratigraphic4
- Climate3
- Military maps3
- Greece2
- Liaoyang, Battle of, Liaoyang, China, 19042
- Phytogeography2
- Russo-Japanese War, 1904-19052
- Agriculture1
- Atlases, Russian1
- Botany1
- Cambrian Geologic Period1
