{"physical_format": "Hardcover", "last_modified": {"type": "/type/datetime", "value": "2008-04-30 09:38:13.731961"}, "publishers": ["Hodder Wayland"], "type": {"key": "/type/edition"}, "number_of_pages": 32, "id": 13269365, "isbn_13": ["9780853409946"], "isbn_10": ["0853409943"], "publish_date": "December 31, 1982", "key": "/b/OL9903256M", "authors": [{"key": "/a/OL766833A"}], "title": "Investigating Sets (Investigations)", "contributions": ["David Anstey (Illustrator)"], "subjects": ["Mathematics", "For National Curriculum Key Stage 2"], "revision": 1}