{"type": {"key": "/type/work"}, "title": "AMS Operator Training Guide and Part 48 Task Training Addendum", "subjects": ["Mine safety", "Handbooks, manuals", "Study and teaching", "Coal mines and mining"], "subject_places": ["United States"], "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL4652039A"}}], "key": "/works/OL32188397W", "latest_revision": 1, "revision": 1, "created": {"type": "/type/datetime", "value": "2022-12-13T03:00:54.426349"}, "last_modified": {"type": "/type/datetime", "value": "2022-12-13T03:00:54.426349"}}