{"type": {"key": "/type/edition"}, "publish_date": "1963", "publish_country": "mau", "languages": [{"key": "/languages/eng"}], "title": "Variable unit economics", "subtitle": "a management study of product action and product information", "authors": [{"key": "/authors/OL1101147A"}], "oclc_numbers": ["79062698"], "notes": {"type": "/type/text", "value": "Thesis (D.B.A.)--Harvard University. Graduate School of Business Administration.\n\nBibliography: \u2113. 227-237."}, "publishers": ["Harvard Graduate School of Business Administration"], "publish_places": ["Boston, Mass"], "pagination": "237 \u2113.", "number_of_pages": 237, "source_records": ["marc:harvard_bibliographic_metadata/20220215_015.bib.mrc:164476801:1384"], "works": [{"key": "/works/OL43991264W"}], "key": "/books/OL60005359M", "latest_revision": 1, "revision": 1, "created": {"type": "/type/datetime", "value": "2025-09-01T06:37:43.073741"}, "last_modified": {"type": "/type/datetime", "value": "2025-09-01T06:37:43.073741"}}