Division Of Sign Numbers
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Copyright
Registered 13Oct77 · MP32387 (Jul-Dec 1977) Copyright holder: The University of Akron Production company: Audio Visual Services in cooperation with Department of Developmental Programs at the University of Akron
Sources
- U.S. Copyright Office, Catalog of Copyright Entries (renewals, 1970–1978) — title, year, creator, length, copyright
Record added 2026-06-28T22:10:05Z