{"type": {"key": "/type/edition"}, "authors": [{"key": "/authors/OL2619737A"}], "identifiers": {"amazon": ["B000RHFDS0"], "better_world_books": ["BWB19702460"]}, "local_id": ["urn:bwbsku:O9-ARJ-573"], "publish_date": "1940-01-01", "publishers": ["Atlantic Monthly Company"], "source_records": ["promise:bwb_daily_pallets_2023-06-27:O9-ARJ-573", "ia:saltofearthstory0000arth"], "title": "Salt of the Earth; The Story of Captain J. B. Ford and Michigan Alkali Company, 1890--1940", "works": [{"key": "/works/OL35988822W"}], "key": "/books/OL48580884M", "covers": [15056528], "ocaid": "saltofearthstory0000arth", "languages": [{"key": "/languages/eng"}], "number_of_pages": 134, "latest_revision": 2, "revision": 2, "created": {"type": "/type/datetime", "value": "2023-06-29T01:07:09.246854"}, "last_modified": {"type": "/type/datetime", "value": "2025-05-11T19:00:03.037055"}}