@book{272662,
	author = {United States.},
	title = {Challenges facing law enforcement in the 21st century :},
	publisher = {U.S. Government Publishing Office,},
	year = {2018.},
	address = {Washington :},
	note = {"Serial no. 115-16."},
	url = {http://purl.fdlp.gov/GPO/gpo93484}
}