@book{37247,
	author = {United States.},
	title = {Dictionary of occupational titles.},
	publisher = {U.S. Dept. of Labor, Manpower Administration, Bureau of Employment Security; for sale by the Superintendent of Documents, U. S. Govt. Print. Off.,},
	year = {1965.},
	address = {Washington,},
	edition = {3d ed.},
	note = {"Supersedes the 1949 edition of vols. I and II and its supplement of March 1955, and pt. IV of October 1944."}
}