{"first_sentence": {"type": "/type/text", "value": "A typical parcel of small gem quality rough."}, "physical_format": "Hardcover", "last_modified": {"type": "/type/datetime", "value": "2008-04-30 09:38:13.731961"}, "weight": "8 ounces", "languages": [{"key": "/l/eng"}], "publishers": ["Amer Inst of Diamond Cutting Inc"], "number_of_pages": 47, "isbn_13": ["9780966585407"], "id": 13162775, "edition_name": "1 edition", "isbn_10": ["0966585402"], "publish_date": "January 1, 1998", "key": "/b/OL9811460M", "authors": [{"key": "/a/OL3236785A"}], "title": "Rough Diamonds, Internal and External Features", "type": {"key": "/type/edition"}, "subjects": ["Diamonds", "Education", "Hobbies", "Reference", "Science", "Nature/Ecology"], "physical_dimensions": "8.6 x 5.8 x 0.5 inches", "revision": 1}