{"languages": [{"key": "/l/eng"}], "last_modified": {"type": "/type/datetime", "value": "2008-04-29 13:35:46.87638"}, "publishers": ["Elsevier"], "number_of_pages": 512, "isbn_13": ["9780444802989"], "isbn_10": ["0444802983"], "publish_date": "November 1980", "key": "/b/OL7531641M", "authors": [{"key": "/a/OL2708482A"}], "title": "Quantification of Steady-state Operant Behaviour", "type": {"key": "/type/edition"}, "id": 10251966, "revision": 1}