Great lakes, fragile seas [videorecording]

North America's freshwater seas have been subjected to decades of human abuse. Documents concurred groups attempting to repair past damage and confronting new threats to these waters. Shows how bodies of water affect lives of people. Shows the multifaceted aspects of the seas and other bodies o...

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Dades bibliogràfiques
Autor corporatiu: National Geographic Society (Washington, D.C.), WQED (Television station : Pittsburg, Pa.)
Altres autors: Seamans, Joe
Resource Type: Visual Material
Idioma:English
Publicat: Washington, D.C. The Society c1991.
Matèries: