A study of Canadian geography, which explores the physical alterations in the Great Lakes through the ages, and their current polluted state.
Pyramid Media, PO Box 1048/WEB, Santa Monica, CA 90406, Phone: (310)828-7577, Toll-free: 800-421-2304, Fax: (310)453-9083, Email: firstname.lastname@example.org, URL: http://www.pyramidmedia.com
Available on VHS
Running time 17 minutes.
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