@book{282741,
	author = {United States.},
	title = {H.R. 1528, the National Geologic Mapping Reauthorization Act of 1999 :},
	publisher = {U.S. Government Printing Office,},
	year = {1999.},
	address = {Washington :},
	note = {"Serial no. 106-37."},
	url = {http://purl.access.gpo.gov/GPO/LPS3632}
}