{"first_publish_date": "1993", "title": "MS-DOS, versions 6 and 6.2", "lc_classifications": ["QA76.76.O63 S44 1993"], "key": "/works/OL1688866W", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL191336A"}}], "dewey_number": ["005.4/469"], "type": {"key": "/type/work"}, "subjects": ["MS-DOS (Computer file)", "Operating systems (Computers)"], "covers": [13832343], "latest_revision": 4, "revision": 4, "created": {"type": "/type/datetime", "value": "2009-12-09T22:08:12.806914"}, "last_modified": {"type": "/type/datetime", "value": "2023-04-05T04:30:51.411874"}}