{"isbn_13": ["9780824729042"], "physical_format": "Hardcover", "weight": "2.6 pounds", "languages": [{"key": "/l/eng"}], "publishers": ["CRC"], "number_of_pages": 552, "last_modified": {"type": "/type/datetime", "value": "2008-04-29 15:03:11.581851"}, "id": 11009965, "first_sentence": {"type": "/type/text", "value": "Digital microwave links are becoming an integral part of the public networks of almost all countries."}, "isbn_10": ["0824729048"], "publish_date": "February 26, 1993", "key": "/b/OL8125490M", "authors": [{"key": "/a/OL2870863A"}, {"key": "/a/OL1643202A"}], "title": "Encyclopedia of Telecommunications (Froehlich/Kent Encyclopedia of Telecommunications)", "type": {"key": "/type/edition"}, "subjects": ["Communications engineering / telecommunications", "Media, information & communication industries", "Telecommunication", "Communication Engineering", "Technology & Industrial Arts", "Science/Mathematics", "Telecommunications", "Engineering - Electrical & Electronic", "Technology / Engineering / Electrical", "Encyclopedias"], "physical_dimensions": "10.2 x 7.2 x 1.2 inches", "revision": 1}