@book{36931,
	author = {United States Employment Service.},
	title = {Estimates of worker trait requirements for 4,000 jobs as defined in the Dictionary of occupational titles;},
	publisher = {U.S. Dept. of Labor, Bureau of Employment Security},
	year = {[1956]},
	address = {[Washington]},
	note = {Issued as attachment to Employment service program letter no. 730, Nov. 8, 1956.}
}