{"isbn_13": ["9780882190112"], "physical_format": "Unknown Binding", "last_modified": {"type": "/type/datetime", "value": "2008-09-04 08:21:33.201047"}, "languages": [{"key": "/l/eng"}], "publishers": ["Matchless Pub. Co"], "title": "Datz philatelic index of United States postage stamps", "id": 14818744, "edition_name": "1976 ed edition", "isbn_10": ["0882190113"], "publish_date": "1976", "key": "/b/OL11226171M", "authors": [{"key": "/a/OL265645A"}], "type": {"key": "/type/edition"}, "subjects": ["Catalogs", "Postage stamps", "United States"], "revision": 2}