{"languages": [{"key": "/l/fre"}], "physical_format": "Paperback", "subtitle": "Itineraires sur les traces de nos souverains de 1830 a nos jours", "last_modified": {"type": "/type/datetime", "value": "2008-04-30 09:38:13.731961"}, "publishers": ["J.-M. Collet"], "number_of_pages": 223, "id": 12186223, "isbn_13": ["9782873670443"], "isbn_10": ["2873670444"], "publish_date": "1997", "key": "/b/OL9004270M", "authors": [{"key": "/a/OL294828A"}], "title": "Le guide de la Belgique royale", "type": {"key": "/type/edition"}, "subjects": ["Description and travel", "Belgium"], "revision": 1}