@book{276621,
	author = {United States.},
	title = {Protection of Lechuguilla Cave :},
	publisher = {U.S. Government Printing Office,},
	year = {1993.},
	address = {Washington :},
	note = {CRDP Program record.},
	url = {https://purl.fdlp.gov/GPO/gpo110568}
}