{"isbn_13": ["9780131536067"], "physical_format": "Paperback", "weight": "1.9 pounds", "languages": [{"key": "/l/eng"}], "publishers": ["Prentice Hall"], "number_of_pages": 496, "last_modified": {"type": "/type/datetime", "value": "2008-04-30 09:38:13.731961"}, "id": 12544174, "edition_name": "4 edition", "isbn_10": ["0131536060"], "publish_date": "November 17, 2004", "key": "/b/OL9291655M", "authors": [{"key": "/a/OL392294A"}, {"key": "/a/OL2649128A"}], "title": "Microeconomics: Principles and Tools (4th Edition) (O'Sullivan/Sheffrin Economics: Principles and Tools 4e Series)", "type": {"key": "/type/edition"}, "subjects": ["Microeconomics", "Business/Economics", "Business & Economics", "Business / Economics / Finance", "Textbooks", "Economics - Microeconomics", "Business & Economics / Economics / General"], "physical_dimensions": "10 x 7.8 x 0.9 inches", "revision": 1}