Examination of the danger to workers in deep mines, where over one hundred thousand have been killed.
PBS Home Video, Catalog Fulfillment Center, PO Box 751089, Charlotte, NC 28275-1089, Phone: (800)531-4727, Toll-free: 800-645-4PBS, Email: email@example.com, URL: http://www.pbs.org
Available on VHS
Running time 58 minutes.
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