16mm Filmography
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Secret Life Of A Trout River

Shows a trout river to be a complex, delicately balanced ecological system.

Copyright

Registered 13Jan75 · MP26562 (Jan-Jun 1975) Copyright holder: National Geographic Society Production company: Oxford Scientific Films, Ltd

More in Bio-Science Series

  1. Protists: Threshold of Life 1974
  2. Secret Life Of A Trout River 1974
  3. Spiders - Aggression And Mating 1974
  4. Plankton 1976
  5. Pond - Life Food Web 1976

Related films

Sources

  1. 16mm Filmography (legacy record) — title, year, creator, format, sound, description, catalog record
  2. U.S. Copyright Office, Catalog of Copyright Entries (renewals, 1970–1978) — copyright
  3. 16mm Filmography editors — length

Original permalink · Record added 2023-02-27 03:57:33