{"type": {"key": "/type/edition"}, "authors": [{"key": "/authors/OL52940A"}], "isbn_13": ["9786074571431"], "languages": [{"key": "/languages/spa"}], "number_of_pages": 550, "publish_date": "2011", "publishers": ["Lectorum, S.A. de C.V."], "source_records": ["bwb:9786074571431"], "title": "Ausencia de Felicidad", "subtitle": "La Historia de Helen Schucman, la Escriba de un Curso de Milagros", "full_title": "Ausencia de Felicidad La Historia de Helen Schucman, la Escriba de un Curso de Milagros", "works": [{"key": "/works/OL38640720W"}], "key": "/books/OL52595047M", "latest_revision": 2, "revision": 2, "created": {"type": "/type/datetime", "value": "2024-07-17T16:50:07.237080"}, "last_modified": {"type": "/type/datetime", "value": "2025-10-16T12:12:40.153742"}}