{"subject_places": ["Europe", "Spain"], "subjects": ["History", "Labor", "Labor unions", "Working class", "Working Class"], "key": "/works/OL6602816W", "title": "Aproximacio\u0301n a la historia social del trabajo en Europa", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL1774743A"}}], "type": {"key": "/type/work"}, "covers": [13792768], "latest_revision": 4, "revision": 4, "created": {"type": "/type/datetime", "value": "2009-12-10T19:25:59.922654"}, "last_modified": {"type": "/type/datetime", "value": "2023-04-01T18:51:24.487525"}}