{"physical_format": "Paperback", "last_modified": {"type": "/type/datetime", "value": "2008-04-30 20:50:18.033121"}, "publishers": ["Rita & Dr Siegmar Wittig"], "number_of_pages": 314, "id": 17155730, "isbn_13": ["9783889841308"], "isbn_10": ["3889841309"], "key": "/b/OL12984081M", "title": "The Register of 35mm Single Lens Reflex Cameras", "type": {"key": "/type/edition"}, "subjects": ["Photographic equipment & techniques"], "revision": 1}