How to Study - Ecology
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Copyright
Registered 16May78 · PA 11-045 (Jul-Dec 1978) Copyright holder: BFA Educational Media Production company: Distributed by BFA, cMCMLXXII
Sources
- 16mm Filmography (legacy record) — title
- U.S. Copyright Office, Catalog of Copyright Entries (renewals, 1970–1978) — copyright
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