@book{12209,
	author = {United States},
	title = {The Economics of clean water.},
	publisher = {U.S. Dept. of the Interior, Federal Water Pollution Control Administration; for sale by the Supt. of Docs., U.S. G.P.O.},
	year = {1970-},
	address = {Washington, D.C.},
	note = {"Annual report of the administrator of the Environmental Protection Agency to the Congress of the United States."}
}