{"publishers": ["AMERICAN ELSEVIER PUBLISHING C"], "subtitle": "A Mathematical Restatement of the Labor Theory of Value", "last_modified": {"type": "/type/datetime", "value": "2008-04-30 09:38:13.731961"}, "title": "Proportions, Prices and Planning", "physical_format": "Hardcover", "isbn_10": ["0444100067"], "publish_date": "1974", "key": "/b/OL10259777M", "authors": [{"key": "/a/OL2810122A"}], "type": {"key": "/type/edition"}, "id": 13684053, "revision": 1}