| Label | Vocabulary | Concept | Subdivision | Identifier | |
|---|---|---|---|---|---|
| 1. | Officials and employees | LC Subject Headings (LCSH) |
General Subdivision | sh00005024 | |
| 2. | Research | LC Subject Headings (LCSH) |
General Subdivision | sh2002006576 | |
| 3. | Posters | LC Subject Headings (LCSH) |
General Subdivision | sh2003003680 | |
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