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Discusses the ecological and environmental effect of the Wisconsin glaciation period. Comes with teacher's manual.
Educational Video Network, 1336 19th St., Huntsville, TX 77340, Phone: (936)295-5767, Toll-free: 800-762-0060, Fax: (409)294-0233, URL: http://www.evndirect.com
Available on VHS
Running time 20 minutes.
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