@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.} }