{"type": {"key": "/type/work"}, "title": "Tables on hatchery and flock participation in the National Poultry Improvement Plan by States and Divisions, 1958-59 and 1959-60 and United States Summary 1954-55 to date", "subjects": ["Poultry breeds", "Statistics", "National Poultry Improvement Plan (U.S.)"], "subject_places": ["United States"], "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL7182373A"}}], "covers": [11841944], "key": "/works/OL24929637W", "latest_revision": 1, "revision": 1, "created": {"type": "/type/datetime", "value": "2021-08-28T18:58:35.968070"}, "last_modified": {"type": "/type/datetime", "value": "2021-08-28T18:58:35.968070"}}