http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Hazards associated with striking underground gas lines
Occupational Safety and Health Administration.
Office of Science and Technology Assessment.
Title from title screen (viewed on Oct. 19, 2011).
Safety and health information bulletin ; SHIB 03-05-21