{"languages": [{"key": "/l/eng"}], "physical_format": "Unknown Binding", "subtitle": "With clothespins, paper clips, paper beams and simple things (Science with simple things)", "last_modified": {"type": "/type/datetime", "value": "2008-04-29 15:03:11.581851"}, "publishers": ["TOPS Learning Systems"], "number_of_pages": 20, "id": 11396935, "isbn_13": ["9780941008310"], "isbn_10": ["0941008312"], "publish_date": "1981", "key": "/b/OL8421895M", "authors": [{"key": "/a/OL45451A"}], "title": "Balancing", "type": {"key": "/type/edition"}, "subjects": ["Balance", "Problems, exercises, etc", "Science", "Study and teaching (Elementary)", "Study and teaching (Secondary)"], "revision": 1}