{"lc_classifications": ["S591 .A22 ser. 1953, no. 1"], "key": "/works/OL1484615W", "title": "Soil survey, Isanti County, Minnesota", "subject_places": ["Isanti County", "Minnesota"], "first_publish_date": "1958", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL158156A"}}], "type": {"key": "/type/work"}, "subjects": ["Soil surveys", "Soils", "Maps", "Sols"], "latest_revision": 3, "revision": 3, "created": {"type": "/type/datetime", "value": "2009-12-09T21:41:38.907888"}, "last_modified": {"type": "/type/datetime", "value": "2025-11-30T22:11:25.303414"}}