{"title": "Copper wire tables.", "authors": [{"key": "/authors/OL1288650A"}], "publish_date": "1956", "publishers": ["USGPO"], "series": ["NBS Circular 31"], "edition_name": "4th ed.", "languages": [{"key": "/languages/eng"}], "publish_country": "xxu", "publish_places": ["Washington"], "type": {"key": "/type/edition"}, "source_records": ["marc:talis_openlibrary_contribution/talis-openlibrary-contribution.mrc:3122879973:416"], "key": "/books/OL20112148M", "works": [{"key": "/works/OL10578313W"}], "latest_revision": 4, "revision": 4, "created": {"type": "/type/datetime", "value": "2008-10-25T23:41:08.314206"}, "last_modified": {"type": "/type/datetime", "value": "2026-02-07T05:53:49.729840"}}