{"subtitle": "its introduction and spread in California, with laws and measures for its control, with a description of the Canada and Scotch thistles.", "last_modified": {"type": "/type/datetime", "value": "2012-08-09T06:11:41.510374"}, "title": "The Russian thistle", "created": {"type": "/type/datetime", "value": "2009-12-09T21:36:48.636393"}, "covers": [5771200], "first_publish_date": "1905", "latest_revision": 5, "key": "/works/OL1464049W", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL155066A"}}], "type": {"key": "/type/work"}, "subjects": ["Agricultural pests", "Control", "Russian thistle", "Thistle", "Agricultural laws and legislation", "Cirsium arvense", "Plant quarantine"], "revision": 5}