| Label | Vocabulary | Concept | Subdivision | Identifier | |
|---|---|---|---|---|---|
| 1. | Abstracting and indexing | LC Subject Headings (LCSH) |
General Subdivision | sh99002070 | |
| Indexing | |||||
| 2. | History | LC Subject Headings (LCSH) |
General Subdivision | sh99005024 | |
| Frontier troubles ; Frontier troubles | |||||
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