{"lc_classifications": ["HG4028.C4 R25"], "key": "/works/OL25602W", "title": "How to use return-on-investment concepts and techniques for profit improvement", "first_publish_date": "1974", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL26011A"}}], "dewey_number": ["658.1/55"], "type": {"key": "/type/work"}, "subjects": ["Profit", "Rate of return", "Capital investments"], "covers": [11648933], "latest_revision": 3, "revision": 3, "created": {"type": "/type/datetime", "value": "2009-10-12T18:32:47.371062"}, "last_modified": {"type": "/type/datetime", "value": "2021-08-16T01:05:21.785188"}}