@book{286330,
	author = {National Center for Health Statistics (U.S.),},
	title = {Questionnaire design in the cognitive research laboratory.},
	publisher = {U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control, National Center for Health Statistics,},
	year = {1993.},
	series = {Vital and health statistics. Series 6, Cognition and survey measurement ;},
	address = {Hyattsville, Maryland :},
	note = {"May 1989 (reprinted April 1993)."},
	url = {https://purl.fdlp.gov/GPO/gpo114568}
}