@article {11306,
	title = {The National Parks: America{\textquoteright}s Best Idea},
	year = {2009},
	publisher = {PBS Home Video},
	type = {video discs},
	keywords = {Conservation, History},
	author = {Burns, Ken and Duncan, Dayton}
}
@book {11659,
	title = {The National Parks: America{\textquoteright}s Best Idea},
	year = {2009},
	note = {Accompanies the PBS mini-series.},
	pages = {432},
	publisher = {Alfred A. Knopf},
	organization = {Alfred A. Knopf},
	keywords = {Appalachian Trail, Conservation, Economy, Park development, Tourism},
	author = {Duncan, Dayton and Burns, Ken}
}
@book {11088,
	title = {The National Parks: America{\textquoteright}s Best Idea: An Illustrated History},
	year = {2009},
	note = {Illustrations, Color Maps},
	pages = {403},
	publisher = {Alfred A. Knopf},
	organization = {Alfred A. Knopf},
	edition = {1st},
	keywords = {Conservation, History, Interviews, Photographs},
	author = {Duncan, Dayton and Burns, Ken and Steisel, Susanna and Silverstone, Aileen}
}
