{"title": "Electrical fundamentals (direct current)", "authors": [{"key": "/authors/OL2626579A"}], "publish_date": "1951", "publishers": ["U.S. Govt. Print Off."], "pagination": "186p.", "type": {"key": "/type/edition"}, "languages": [{"key": "/languages/eng"}], "lc_classifications": ["QC523 U5"], "publish_places": ["Washington"], "contributions": ["United States. Dept. of the Air Force"], "subjects": ["Electric currents", "Electricity"], "source_records": ["marc:marc_university_of_toronto/uoft.marc:868901076:727"], "key": "/books/OL16632074M", "number_of_pages": 186, "works": [{"key": "/works/OL10818521W"}], "latest_revision": 5, "revision": 5, "created": {"type": "/type/datetime", "value": "2008-09-25T08:38:30.117085"}, "last_modified": {"type": "/type/datetime", "value": "2026-04-23T08:47:54.403282"}}