| Label | Dataset | Type | Subdivision | Identifier | |
|---|---|---|---|---|---|
| 1. | Petroleum waste |
LC Subject Headings (LCSH) |
Topic SimpleType Authority |
sh85100466 | |
| Used oil ; Waste oil | |||||
| 2. | Petroleum waste--Recycling |
LC Subject Headings (LCSH) |
ComplexSubject ComplexType Authority |
sh85100468 | |
| Mineral oils--Reclamation ; Oil reclamation ; Petroleum--Recycling ; Reclamation of oil ; Oil reclamation | |||||
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