| Label | Dataset | Type | Subdivision | Identifier | |
|---|---|---|---|---|---|
| 1. | Control--Environmental aspects |
LC Subject Headings (LCSH) |
ComplexSubject ComplexType Authority |
General Subdivision | sh99005379 |
| 2. | Control--Law and legislation |
LC Subject Headings (LCSH) |
ComplexSubject ComplexType Authority |
General Subdivision | sh99005380 |
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