{"isbn_13": ["9780824775513"], "physical_format": "Hardcover", "weight": "1.2 pounds", "languages": [{"key": "/l/eng"}], "publishers": ["CRC"], "number_of_pages": 432, "last_modified": {"type": "/type/datetime", "value": "2008-04-29 15:03:11.581851"}, "id": 11009977, "first_sentence": {"type": "/type/text", "value": "A biological system comprises all interactions between a biotic organization and an abiotic environment."}, "isbn_10": ["0824775511"], "publish_date": "September 12, 1984", "key": "/b/OL8126093M", "authors": [{"key": "/a/OL2870520A"}], "title": "Metal Ions in Biological Systems (Circulation of the Metals in the Environment)", "type": {"key": "/type/edition"}, "subjects": ["Biochemistry", "Science", "Science/Mathematics", "Chemistry - Inorganic", "Science / Chemistry / Inorganic", "Nature"], "physical_dimensions": "8.9 x 6 x 1 inches", "revision": 1}