@book{257449,
	author = {United States.},
	title = {Oversight of the National Park Service :},
	publisher = {U.S. Government Publishing Office,},
	year = {2017.},
	address = {Washington :},
	note = {Paper version available for sale by the Superintendent of Documents, U.S. Government Publishing Office.},
	url = {https://purl.fdlp.gov/GPO/gpo76810}
}