{"title": "Trends in premarital childbearing", "subject_places": ["United States"], "key": "/works/OL10401553W", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL4315404A"}}], "type": {"key": "/type/work"}, "subjects": ["Statistics", "Marital status", "Unmarried mothers", "Childbirth", "Human Fertility"], "latest_revision": 3, "revision": 3, "created": {"type": "/type/datetime", "value": "2009-12-11T02:55:24.870627"}, "last_modified": {"type": "/type/datetime", "value": "2026-08-11T10:06:15.133686"}}