{"languages": [{"key": "/l/spa"}], "physical_format": "Paperback", "last_modified": {"type": "/type/datetime", "value": "2008-04-30 20:50:18.033121"}, "publishers": ["McGraw-Hill Interamericana"], "title": "Practicas de Electronica 3 - Sistemas Digitales", "id": 17546694, "isbn_13": ["9788476156704"], "isbn_10": ["8476156707"], "publish_date": "August 1992", "key": "/b/OL13285017M", "authors": [{"key": "/a/OL4237053A"}], "type": {"key": "/type/edition"}, "subjects": ["General", "Technology & Industrial Arts"], "revision": 1}