@book{278803,
	author = {United States.},
	title = {EPA's expansion of 112(r) of the 1990 Clean Air Act Amendments to include propane :},
	publisher = {U.S. Government Printing Office,},
	year = {1999.},
	address = {Washington :},
	note = {CRDP Program record.},
	url = {https://purl.fdlp.gov/GPO/gpo115364}
}