@book{36215,
	author = {United States Employment Service.},
	title = {Occupational titles and codes for use in public employment offices,},
	publisher = {U.S. Govt. Print. Off.,},
	year = {1936.},
	series = {Employment office manual series. Section B-C},
	address = {Washington,},
	note = {At head of title: United States Department of Labor. Frances Perkins, secretary. United States Employment Service. W. Frank Persons, director.}
}