{"birth_date": "1934", "type": {"key": "/type/author"}, "name": "William K. Purves", "personal_name": "William K. Purves", "key": "/authors/OL583250A", "latest_revision": 3, "revision": 3, "created": {"type": "/type/datetime", "value": "2008-04-01T03:28:50.625462"}, "last_modified": {"type": "/type/datetime", "value": "2023-10-17T15:35:59.292797"}}