{"publishers": ["Distributed by the Harvard University Press"], "subtitle": "classified listing by call number, alphabetical listing by title.", "lc_classifications": ["Z6945 .H34"], "key": "/books/OL5606876M", "authors": [{"key": "/authors/OL884732A"}], "publish_places": ["Cambridge"], "pagination": "758 p.", "source_records": ["marc:marc_loc_2016/BooksAll.2016.part06.utf8:142202238:590", "marc:harvard_bibliographic_metadata/ab.bib.00.20150123.full.mrc:539823357:905", "marc:marc_columbia/Columbia-extract-20221130-005.mrc:42426435:1068", "ia:periodicalclasse0000harv", "marc:harvard_bibliographic_metadata/20220215_019.bib.mrc:219287836:2015"], "title": "Periodical classes", "dewey_decimal_class": ["017"], "number_of_pages": 758, "languages": [{"key": "/languages/eng"}], "lccn": ["68014152"], "subjects": ["Periodicals -- Bibliography -- Catalogs."], "publish_date": "1968", "publish_country": "mau", "works": [{"key": "/works/OL4445042W"}], "type": {"key": "/type/edition"}, "oclc_numbers": ["5623853", "249373"], "covers": [15036138], "ocaid": "periodicalclasse0000harv", "latest_revision": 7, "revision": 7, "created": {"type": "/type/datetime", "value": "2008-04-01T03:28:50.625462"}, "last_modified": {"type": "/type/datetime", "value": "2025-10-22T17:56:05.296481"}}