{"subtitle": "Oversight hearings before the Subcommittee on National Parks and Public Lands of the Committee on Interior ... DC, May 24, 1990, October 11, 1990", "title": "National park concessions policies and management", "created": {"type": "/type/datetime", "value": "2009-10-28T09:51:14.313155"}, "covers": [4577179], "last_modified": {"type": "/type/datetime", "value": "2010-04-28T08:48:39.708094"}, "latest_revision": 3, "key": "/works/OL429684W", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL18485A"}}], "type": {"key": "/type/work"}, "id": 35342631, "revision": 3}