Continuous Progress Learning
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Copyright
Registered 20Oct70 · MP23946 (Jan-Jun 1973) Copyright holder: Institute for Development of Educational Activities, Inc
Sources
- 16mm Filmography (legacy record) — title, length
- U.S. Copyright Office, Catalog of Copyright Entries (renewals, 1970–1978) — copyright
Original permalink · Record added 2024-09-08 00:58:11