The Concept Of Fractional Numbers
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Registered 7Dec70 · MP21636 (Jul-Dec 1971) Copyright holder: Macmillan Co Production company: Davidson Films
Sources
- U.S. Copyright Office, Catalog of Copyright Entries (renewals, 1970–1978) — title, year, creator, length, copyright
Record added 2026-06-28T20:22:43Z · Suggest a correction