{"isbn_13": ["9780838934937"], "physical_format": "Paperback", "subtitle": "Toronto, Ontario, Canada October 23-25, 1997", "weight": "1.5 pounds", "languages": [{"key": "/l/eng"}], "type": {"key": "/type/edition"}, "publishers": ["American Library Association"], "number_of_pages": 272, "last_modified": {"type": "/type/datetime", "value": "2008-04-29 15:03:11.581851"}, "id": 11136708, "edition_name": "New Ed edition", "isbn_10": ["0838934935"], "publish_date": "December 1998", "key": "/b/OL8224137M", "authors": [{"key": "/a/OL2898577A"}], "title": "The Principles and Future of Aacr: Proceedings of the International Conference on the Principles and Future Development of Aacr ", "contributions": ["Jean Riddle Weihs (Editor)"], "subjects": ["Bibliographic & subject control", "Computing and Information Technology", "Language Arts & Disciplines", "Cataloging And Classification", "Reference", "United States", "Rules", "Library & Information Science", "Canada", "Congresses", "Descriptive cataloging", "Great Britain"], "physical_dimensions": "11 x 8.5 x 0.6 inches", "revision": 1}