The Frog: Digestive System.
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Registered 1Dec70 · MP21472 (Jan-Jun 1971) Copyright holder: Thorne Films, Inc
Complete catalog record
The Frog: Digestive System. Encyclopaedia Britannica Films. 4 Min., Si., Color, 8 Mm. (Demonstrations In Biology, 12 Units) © Encyclopaedia Britannica Films, Inc.; 4may65 (In Notice: 1964); Mp15208.
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Sources
- 16mm Filmography (legacy record) — title, year, creator, format, color, sound, genre, catalog record
- U.S. Copyright Office, Catalog of Copyright Entries (renewals, 1970–1978) — copyright
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