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Presents the exploration and discoveries of the U.S. Geological Survey's work to map the entire ocean floor within 200 miles of all American coastlines.
University of California Extension Ctr. for Media & Independent Learning, 2000 Center St., 4th Fl., Berkeley, CA 94704, Phone: (510)642-0460, Fax: (510)643-9271, Email: mediaservices@ucxonline.berkeley.edu
Available on VHS
Running time 28 minutes.
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