@book{286160,
	author = {Mount, Henry S., and National Center for Health Statistics (U.S.),},
	title = {Opticians employed in health services, United States-1969 /},
	publisher = {U.S. Department of Health, Education, and Welfare, Public Health Service, Health Services and Mental Health Administration, National Center for Health Statistics,},
	year = {1972.},
	series = {Vital and health statistics. Series 14, Data on national health resources ;},
	address = {Rockville, Md. :},
	note = {"June 1972."},
	url = {https://purl.fdlp.gov/GPO/gpo114790}
}