@book{278122,
	author = {United States.},
	title = {Pricing policies and competition in the contact lens industry :},
	publisher = {U.S. Government Publishing Office,},
	year = {2018.},
	series = {S. hrg. ;},
	address = {Washington :},
	note = {"Serial no. J-113-72."},
	url = {https://purl.fdlp.gov/GPO/gpo113108}
}