Self-contained self-rescuer long term field evaluation [electronic resource] : combined eighth and ninth phase results.
Imprint
[Pittsburgh, Pa.] : Dept. of Health and Human Services, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, [2006]
Mode of access: Internet at the National Institute for Occupational Safety and Health web site. Address as of 7/9/08: http://www.cdc.gov/niosh/mining/pubs/pdfs/2007-103.pdf; current access available via PURL.
