@book{286164,
	author = {United States.},
	title = {Older workers under collective bargaining.},
	publisher = {United States Department of Labor, Bureau of Labor Statistics,},
	year = {1956.},
	series = {Bulletin ;},
	address = {Washington, D.C. :},
	note = {"September 1956"--Part 1.},
	url = {https://purl.fdlp.gov/GPO/gpo114645}
}