http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Safety codes for the prevention of dust explosions
1 online resource (iii, 29 pages, iv pages) : illustrations.
National Fire Protection Association and United States Department of Agriculture, sponsors.
"American Standard, approved by the American Standards Association."
At head of title: United States Department of Labor, Frances Perkins, Secretary. Bureau of Labor Statistics, Isador Lubin, Commissioner.
Also issued as House doc. 256. 74th Cong., 1st sess.
Bulletin of the United States Bureau of Labor Statistics ; 617