{"languages": [{"key": "/l/eng"}], "subtitle": "Essays in honour of Jan Tinbergen", "last_modified": {"type": "/type/datetime", "value": "2008-04-29 13:35:46.87638"}, "publishers": ["American Elsevier Pub. Co"], "number_of_pages": 283, "isbn_13": ["9780444105837"], "isbn_10": ["0444105832"], "publish_date": "1973", "key": "/b/OL7529663M", "title": "Economic structure and development", "type": {"key": "/type/edition"}, "id": 10248635, "revision": 1}