{"title": "Introduction to economics", "subjects": ["Economics"], "key": "/works/OL4474501W", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL892552A"}}], "type": {"key": "/type/work"}, "covers": [13066630], "latest_revision": 3, "revision": 3, "created": {"type": "/type/datetime", "value": "2009-12-10T06:28:06.304308"}, "last_modified": {"type": "/type/datetime", "value": "2023-01-14T08:04:08.106178"}}