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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Detalles Bibliográficos
Autores Corporativos: National Geographic Society (Washington, D.C.), WQED (Television station : Pittsburg, Pa.)
Otros Autores: Seamans, Joe
Formato: Visual Material
Lenguaje:English
Publicado: Washington, D.C. The Society c1991.
Materias: