@book {7418,
	title = {Out of Sight: Haze in Our National Parks ; How Power Plants Cost Billions in Visitor Enjoyment},
	year = {2000},
	note = {Illustrations },
	publisher = {Abt Associates },
	organization = {Abt Associates },
	address = {Cambridge, MA},
	keywords = {Pollution, Public utilities, Tourism},
	author = {Hill, L. Bruce}
}
