{"key": "/works/OL12179074W", "title": "Demographic yearbook", "first_publish_date": "1979", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL5292488A"}}], "type": {"key": "/type/work"}, "subjects": ["United nations, yearbooks", "Demography"], "latest_revision": 3, "revision": 3, "created": {"type": "/type/datetime", "value": "2009-12-11T06:16:53.118728"}, "last_modified": {"type": "/type/datetime", "value": "2022-07-17T07:03:52.363649"}}