@book{67457,
	author = {Portney, Kent E.},
	title = {Controversial issues in environmental policy :},
	publisher = {Sage Publications,},
	year = {c1992.},
	address = {Newbury Park, Calif. :},
	url = {http://www.loc.gov/catdir/enhancements/fy0655/92030004-d.html}
}