Soil: An Introduction
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Describes the importance of soil as a resource, indicating that without it life on earth would not be possible. Shows how soil is formed and points out the interdependence between living things and soil. Stresses that, because of this interdependence, the limited amount of soil there is, and the time necessary for its formation, man must use soil wisely.
Copyright
Registered 3Jan77 · MP31701 (Jul-Dec 1977) Copyright holder: CBS, Inc
Sources
- 16mm Filmography (legacy record) — title, year, creator, length, format, color, description, catalog record
- U.S. Copyright Office, Catalog of Copyright Entries (renewals, 1970–1978) — copyright
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