{"first_publish_date": "1960", "title": "Waste treatment", "lc_classifications": ["TD741 .S9 1959"], "key": "/works/OL157319W", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL2164482A"}}], "dewey_number": ["628.3082"], "type": {"key": "/type/work"}, "subjects": ["Congresses", "Sewage disposal", "Sewage, purification", "Fluid Waste Disposal"], "latest_revision": 5, "revision": 5, "created": {"type": "/type/datetime", "value": "2009-10-20T03:37:16.869534"}, "last_modified": {"type": "/type/datetime", "value": "2025-12-31T16:59:59.764929"}}