Using in-place stone stoppings to direct air in underground stone mines [electronic resource].
Imprint
[Pittsburgh, PA] : U.S. Dept. of Health and Human Services, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, [2002]
Mode of access: Internet from the CDC web site. Address as of 03/17/08: http://www.cdc.gov/niosh/mining/pubs/pdfs/tn500.pdf; current access available via PURL.
Note
Title from title screen (viewed on Mar. 17, 2008).
"Milestones in Mining Safety and Health Technology."
