{"publishers": ["Wiley"], "source_records": ["amazon:0471432229:bo:2421545015:226991", "marc:marc_loc_updates/v36.i10.records.utf8:25166587:967"], "created": {"type": "/type/datetime", "value": "2008-04-29T13:35:46.876380"}, "number_of_pages": 515, "isbn_13": ["9780471432227"], "languages": [{"key": "/l/eng"}], "authors": [{"key": "/a/OL2649315A"}, {"key": "/a/OL2649316A"}], "isbn_10": ["0471432229"], "publish_date": "January 30, 2006", "key": "/b/OL7617156M", "last_modified": {"type": "/type/datetime", "value": "2009-05-05T13:19:45.393636"}, "title": "An Introduction to Digital and Analog Communications", "latest_revision": 2, "type": {"key": "/type/edition"}, "id": 10368627, "first_sentence": {"type": "/type/text", "value": "With this quotation from Auguste Comte in mind, we begin this introductory study of communication systems with a historical account of this discipline that touches our daily lives in one way or another.1"}, "revision": 2}