{"identifiers": {"librarything": ["6381613"], "goodreads": ["4975977"]}, "title": "Dinefwr Castle - Dryslwyn Castle (CADW Guidebooks)", "authors": [{"key": "/authors/OL730572A"}, {"key": "/authors/OL2462061A"}, {"key": "/authors/OL2985357A"}], "publish_date": "June 1999", "publishers": ["Cadw Welsh Historic Monuments"], "weight": "6.4 ounces", "isbn_13": ["9781857601619"], "physical_format": "Paperback", "isbn_10": ["1857601610"], "oclc_numbers": ["43377718"], "type": {"key": "/type/edition"}, "subjects": ["Castles", "Museum, historic sites, gallery & art guides", "Southwest Wales", "Wales"], "physical_dimensions": "9.4 x 6.5 x 0.2 inches", "source_records": ["amazon:1857601610"], "key": "/books/OL12012406M", "number_of_pages": 48, "latest_revision": 6, "revision": 6, "created": {"type": "/type/datetime", "value": "2008-04-30T20:50:18.033121"}, "last_modified": {"type": "/type/datetime", "value": "2026-06-06T16:43:17.828439"}}