@book{56708,
	author = {Thompson, Mark S.},
	title = {Benefit-cost analysis for program evaluation /},
	publisher = {Sage Publications,},
	year = {c1980.},
	address = {Beverly Hills, Calif. :},
	note = {Includes index.},
	url = {http://www.loc.gov/catdir/enhancements/fy0660/80013110-d.html}
}