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| Extensions | .opf |
|---|---|
| MIME types | application/oebps-package+xml |
| Signatures | 564e4d45424f4f4b at byte 03c3f786d6c2076657273696f6e3d at byte 0 |
| Wikidata | Q2248872 |
| Library of Congress | fdd000054fdd000171 |
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Sources
From Wikidata. Updated 2026-10-20.