@book{35853,
	author = {National Fire Protection Association. and United States.},
	title = {Safety codes for the prevention of dust explosions.},
	publisher = {Govt. print. off.,},
	year = {1927.},
	series = {Bulletin of the United States Bureau of labor statistics,},
	address = {Washington,},
	note = {At head of title:  U.S. Department of labor.  James J. Davis, secretary.  Bureau of labor statistics.  Ethelbert Stewart, commissioner.}
}