http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Respirator usage in private sector firms, 2001
National Institute for Occupational Safety and Health
System requirements: Windows Intel Pentium processor; Microsoft Windows 95, OSR 2.0, Windows 98 SE, Windows Millennium, Windows NT 4.0 with Service Pack 5, Windows 2000, Windows XP; 64 MB of RAM; 24 MB of available hard disk space.