Ecology, No. 12: Applied Ecology (Aibs,Pt.IX) (D)
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Discusses relationships of living things to their environment and shows how ecological balance can affect human welfare. Discusses management of forests and grazing lands and the importance of application of soil conservation principles. Stresses need for man to use his environment without destroying it.
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- 16mm Filmography (legacy record) — title, creator, format, description, catalog record
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