{"isbn_13": ["9780471485315"], "last_modified": {"type": "/type/datetime", "value": "2008-04-29 13:35:46.87638"}, "languages": [{"key": "/l/eng"}], "publishers": ["Wiley"], "number_of_pages": 396, "first_sentence": {"type": "/type/text", "value": "The object of this book is to provide both geologists and those associated with the coal industry, as well as teachers of courses on coal, its geology and uses, with a background of the nature of coal and its varying properties, together with the practice and techniques required in order to compile geological data that will enable a coal sequence under investigation to be ultimately evaluated in terms of mineability and saleability."}, "isbn_10": ["0471485314"], "publish_date": "October 29, 2002", "key": "/b/OL7617995M", "authors": [{"key": "/a/OL689852A"}], "title": "Coal Geology", "type": {"key": "/type/edition"}, "id": 10368717, "revision": 1}