@book{36317,
	author = {United States.},
	title = {Earnings and hours in the hat industries, 1939;},
	publisher = {U.S. Govt. Print. Off.,},
	year = {1939.},
	series = {Bulletin},
	address = {Washington,},
	note = {At head of title: United States Department of Labor. Frances Perkins, secretary. Bureau of Labor Statistics. Isador Lubin, commissoner.}
}