@book{191555,
	author = {United States},
	title = {The built environment image guide for the national forests and grasslands.},
	publisher = {U.S. Dept. of Agriculture, Forest Service},
	year = {[2001]},
	address = {[Washington, D.C.]},
	note = {Cover title.},
	url = {http://www.fs.fed.us/recreation/programs/beig}
}