@booklet {haefele_total_2016,
	title = {Total Economic Valuation of the National Park Service Lands and Programs: Results of a Survey of the American Public},
	number = {16-71},
	year = {2016},
	publisher = {Harvard Environmental Economics Program},
	type = {Discussion Paper},
	address = {Cambridge, Massachusetts, USA},
	author = {Haefele, Michelle and Loomis, John and Bilmes, Linda J.}
}
