{"subjects": ["Bibliography", "Contraception", "Eugenics", "Family Planning", "Family Planning Services"], "key": "/works/OL7650344W", "title": "List of references on birth control", "authors": [{"type": "/type/author_role", "author": {"key": "/authors/OL2351024A"}}], "type": {"key": "/type/work"}, "covers": [5840532], "latest_revision": 7, "revision": 7, "created": {"type": "/type/datetime", "value": "2009-12-10T21:33:34.816811"}, "last_modified": {"type": "/type/datetime", "value": "2022-12-22T00:22:11.853205"}}