@book{14383,
	author = {Folmer, Henk,},
	title = {Valuation methods and policy making in environmental economics /},
	publisher = {Elsevier,},
	year = {1989.},
	address = {Amsterdam ;},
	note = {"Selected and integrated papers from the Congress "Environmental policy in a market economy," Wageningen, The Netherlands, 8-11 September 1987."}
}