{"first_publish_date": "1993", "latest_revision": 3, "key": "/works/OL2575280W", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL368055A"}}], "subjects": ["Astronomy", "Bibliography", "Catalogs", "Instituto y Observatorio de Marina (Spain)", "Instituto y Observatorio de Marina (Spain). Biblioteca"], "title": "Cata\u0301logo de la biblioteca del Real Observatorio de la Armada, siglos XV-XVIII", "created": {"type": "/type/datetime", "value": "2009-12-09T23:58:46.019817"}, "lc_classifications": ["QB43.2 .G66 1993", "Z5155 .G66 1993"], "last_modified": {"type": "/type/datetime", "value": "2010-12-04T09:35:43.127247"}, "type": {"key": "/type/work"}, "revision": 3}