@book{35673,
	author = {Clark, Lindley D.},
	title = {Labor laws that have been declared unconstitutional,},
	publisher = {Govt. print. off.,},
	year = {1922.},
	series = {Bulletin of the United States Bureau of labor statistics, no. 321. Labor laws of the United States series},
	address = {Washington,},
	note = {At head of title: U. S. Department of labor. James J. Davis, secretary. Bureau of Labor Statistics. Ethelbert Stewart, commissioner.}
}