@book{164566,
	author = {Gramlich, Edward M., and Gramlich, Edward M.,},
	title = {A guide to benefit-cost analysis},
	publisher = {Waveland Press},
	year = {c1997.},
	address = {Illinois},
	edition = {2nd ed.},
	note = {Updated ed. of: Benefit-cost analysis of government programs. c1981.}
}