{"isbn_13": ["9780470866542"], "last_modified": {"type": "/type/datetime", "value": "2008-04-29 13:35:46.87638"}, "languages": [{"key": "/l/eng"}], "publishers": ["Wiley"], "number_of_pages": 214, "first_sentence": {"type": "/type/text", "value": "The origins of supramolecular chemistry are intimately linked to Pedersen's pioneering work on crown ethers."}, "isbn_10": ["0470866543"], "publish_date": "November 18, 2005", "key": "/b/OL7598284M", "authors": [{"key": "/a/OL2732284A"}], "title": "A Practical Guide to Supramolecular Chemistry", "type": {"key": "/type/edition"}, "id": 10342859, "revision": 1}