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Copyright
Registered 8Sep71 · MP22033 (Jul-Dec 1971) Copyright holder: Iowa State University a.a.d.o. Iowa State University of Science & Technology Production company: Film Production Unit
Sources
- U.S. Copyright Office, Catalog of Copyright Entries (renewals, 1970–1978) — title, year, creator, length, copyright
Record added 2026-06-28T22:00:26Z