{"languages": [{"key": "/l/eng"}], "subtitle": "Measurement and Explanations (Contributions to Economic Analysis)", "last_modified": {"type": "/type/datetime", "value": "2008-04-29 13:35:46.87638"}, "publishers": ["Elsevier Science Pub Co"], "type": {"key": "/type/edition"}, "number_of_pages": 336, "isbn_13": ["9780444824172"], "isbn_10": ["0444824170"], "publish_date": "May 1996", "key": "/b/OL7532430M", "title": "International Productivity Differences", "contributions": ["Karin Wagner (Editor)", "Bart Van Ark (Editor)", "Bart Van Ark (Editor)"], "id": 10253521, "revision": 1}