@article {12093,
	title = {The National Parks: Shaping the System},
	year = {2005},
	note = {Illustrations, Maps},
	pages = {127},
	publisher = {U.S. Department of the Interior},
	edition = {3rd},
	keywords = {History, Park development},
	url = {http://www.cr.nps.gov/history/online\%5Fbooks/shaping/index.htm},
	author = {McDonnell, Janet and Mackintosh, Barry}
}
