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200 10$aBulletin$b[electronic resource] /$fHolmes Safety Association
210   $a[Arlington, Va.] $cDept. of Labor, Mine Safety and Health Administration$d[-2001]
300   $aVols. for Jan.-Apr. 1997 lack cover screen.
300   $aDescription based on: May/June 1997; title from cover screen (viewed Sept. 25, 2001).
300   $aLatest issue consulted: May/June 2001.
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606   $aMine accidents$zUnited States$vPeriodicals
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