Metric Education In The Classroom
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Copyright
Registered 12Sep78 · PA 12-990 (Jul-Dec 1978) Copyright holder: Frederic Willert Production company: Pauper Press
Sources
- U.S. Copyright Office, Catalog of Copyright Entries (renewals, 1970–1978) — title, year, creator, length, copyright
Record added 2026-06-28T22:17:17Z