{"title": "Material included in the original edition of 1841 of Extraordinary popular delusions and the madness of crowds.", "authors": [{"key": "/authors/OL457503A"}], "publish_date": "1932", "other_titles": ["Popular delusions and the madness of crowds.", "Extraordinary popular delusions and the madness of crowds"], "publishers": ["L. C. Page & co."], "publish_places": ["Boston"], "oclc_number": ["1165227"], "pagination": "87 p.", "languages": [{"key": "/languages/eng"}], "subjects": ["Impostors and imposture.", "Swindlers and swindling.", "Occultism.", "Hallucinations and illusions.", "Social psychology."], "publish_country": "mau", "by_statement": "By Charles Mackay, LL.D. and deleted from the edition of 1852 and later editions.", "type": {"key": "/type/edition"}, "location": ["MChB"], "source_records": ["marc:bcl_marc/bcl_open.02.mrc:324630574:1020"], "key": "/books/OL16631863M", "number_of_pages": 87, "works": [{"key": "/works/OL2987287W"}], "latest_revision": 4, "revision": 4, "created": {"type": "/type/datetime", "value": "2008-09-25T08:36:40.223877"}, "last_modified": {"type": "/type/datetime", "value": "2025-12-24T06:20:57.515683"}}