{"last_modified": {"type": "/type/datetime", "value": "2011-10-30T19:36:33.993197"}, "title": "The Ontario high school laboratory manual in chemistry", "created": {"type": "/type/datetime", "value": "2009-10-23T19:12:38.363481"}, "covers": [5762758], "first_publish_date": "1917", "latest_revision": 4, "key": "/works/OL250164W", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL2580124A"}}], "dewey_number": ["540"], "type": {"key": "/type/work"}, "subjects": ["Chemistry", "Laboratory manuals"], "revision": 4}