{"subject_places": ["Mexico", "Puebla (Mexico : State)", "Puebla (State)", "Tlaxcala (Mexico : State)", "Tlaxcala (State)"], "subjects": ["Peasantry", "Rural conditions", "Peasants"], "key": "/works/OL6774510W", "title": "Sozialo\u0308konomische Klassifikation der kleinba\u0308uerlichen Bevo\u0308lkerung im Gebiet von Puebla-Tlaxcala (Mexiko)", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL1846677A"}}], "type": {"key": "/type/work"}, "latest_revision": 4, "revision": 4, "created": {"type": "/type/datetime", "value": "2009-12-10T19:43:57.930367"}, "last_modified": {"type": "/type/datetime", "value": "2026-02-21T23:39:34.203379"}}