{"subjects": ["Analysis", "Laboratory manuals", "Sewage", "Water", "Water, analysis", "Eau", "Manuels de laboratoire", "Analyse", "Eaux us\u00e9es", "TECHNOLOGY & ENGINEERING / Environmental / General"], "key": "/works/OL4444259W", "title": "Water and Wastewater Examination Manual", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL884537A"}}], "type": {"key": "/type/work"}, "covers": [1623551], "latest_revision": 5, "revision": 5, "created": {"type": "/type/datetime", "value": "2009-12-10T06:23:32.758958"}, "last_modified": {"type": "/type/datetime", "value": "2022-12-15T08:20:06.118563"}}