{"isbn_13": ["9781856040181"], "physical_format": "Hardcover", "weight": "2 pounds", "languages": [{"key": "/l/eng"}], "publishers": ["Unipub"], "number_of_pages": 576, "id": 15822857, "edition_name": "3rd edition", "isbn_10": ["1856040186"], "publish_date": "June 1990", "key": "/b/OL12002936M", "last_modified": {"type": "/type/datetime", "value": "2008-04-30 20:50:18.033121"}, "title": "Printed Reference Material and Related Sources of Information", "type": {"key": "/type/edition"}, "subjects": ["Library & Information Sciences"], "physical_dimensions": "9 x 6 x 2 inches", "revision": 1}