{"key": "/works/OL1218217W", "title": "Predator control study and an analysis of the Pennsylvania bounty system", "subject_places": ["Pennsylvania"], "first_publish_date": "1951", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL123135A"}}], "type": {"key": "/type/work"}, "subjects": ["Predatory animals", "Control"], "covers": [14543063], "latest_revision": 3, "revision": 3, "created": {"type": "/type/datetime", "value": "2009-12-09T20:46:25.794027"}, "last_modified": {"type": "/type/datetime", "value": "2023-11-11T04:30:59.162581"}}