{"type": {"key": "/type/work"}, "title": "Final Report of Survey of Cumberland River, Tennessee and Kentucky. Letter From the Acting Secretary of War, Transmitting, With a Letter From the ... of Cumberland River ... Below Nashville", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL18558A"}}], "covers": [10614411], "key": "/works/OL24188239W", "latest_revision": 2, "revision": 2, "created": {"type": "/type/datetime", "value": "2021-02-05T21:11:12.104350"}, "last_modified": {"type": "/type/datetime", "value": "2025-07-16T20:37:49.714455"}}