{"title": "The nature of systems.", "authors": [{"key": "/authors/OL1085132A"}], "publish_date": "1928", "publishers": ["Open Court"], "pagination": "73 p.", "languages": [{"key": "/languages/eng"}], "publish_country": "ilu", "publish_places": ["Chicago"], "type": {"key": "/type/edition"}, "source_records": ["marc:marc_university_of_toronto/uoft.marc:179629107:414"], "key": "/books/OL14715678M", "number_of_pages": 73, "works": [{"key": "/works/OL5005724W"}], "latest_revision": 3, "revision": 3, "created": {"type": "/type/datetime", "value": "2008-09-14T05:37:45.523462"}, "last_modified": {"type": "/type/datetime", "value": "2026-03-19T03:36:35.316292"}}