@book {13145,
	title = {People in national parks: An observational study in Great Smoky Mountains National Park},
	year = {1977},
	pages = {46},
	publisher = {Project for Public Spaces},
	organization = {Project for Public Spaces},
	address = {New York, NY},
	keywords = {National Park Service, Public lands},
	author = {Ellen Bussard}
}
