Super stopping [electronic resource] : a permanent solid stopping for directing ventilation airflows in large-opening metal/nonmetal mines.
Imprint
[Pittsburgh, PA] : U.S. Dept. of Health and Human Services, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, [2006]
Mode of access: Internet from the CDC web site. Address as of 03/19/08: http://www.cdc.gov/niosh/mining/pubs/pdfs/2006-134.pdf; current access available via PURL.
Note
Title from title screen (viewed on Mar. 19, 2008).
"Milestones in Mining Safety and Health Technology."
