{"type": {"key": "/type/work"}, "title": "Guide-book of excursion, Regional Conference on Mineral Resources Development, Economic Commission for Asia and the Far East, Tokyo, April 20-May 10, 1953", "subjects": ["Mines and mineral resources"], "subject_places": ["Japan"], "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL4890731A"}}], "key": "/works/OL35556604W", "latest_revision": 1, "revision": 1, "created": {"type": "/type/datetime", "value": "2023-05-27T15:08:48.022199"}, "last_modified": {"type": "/type/datetime", "value": "2023-05-27T15:08:48.022199"}}