{"first_publish_date": "1940", "subtitle": "Hearings before the Committee on Military Affairs, House of Representatives, Seventy-sixth Congress, third session, on H. R. 7658, a bill to provide for the protection and preservation of domestic sources of iron and steel.  February 13, 1940.", "last_modified": {"type": "/type/datetime", "value": "2011-11-03T22:56:06.930603"}, "title": "Restraining the depletion of domestic reserves of iron and steel scrap", "created": {"type": "/type/datetime", "value": "2009-12-09T22:04:09.578532"}, "subject_places": ["United States"], "lc_classifications": ["HD9516 .A5 1939"], "latest_revision": 3, "key": "/works/OL1653067W", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL184870A"}}], "dewey_number": ["338.2"], "type": {"key": "/type/work"}, "subjects": ["Steel industry and trade", "Iron ores", "Iron industry and trade"], "revision": 3}