{"title": "Field artilleryman's guide", "subjects": ["United States", "United States. Army", "Field and mountain Artillery"], "key": "/works/OL16835182W", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL7179429A"}}], "type": {"key": "/type/work"}, "covers": [10011878], "latest_revision": 2, "revision": 2, "created": {"type": "/type/datetime", "value": "2014-07-24T01:56:55.488290"}, "last_modified": {"type": "/type/datetime", "value": "2025-05-01T19:16:59.779576"}}