@book{107784,
	author = {George Philip & Son.},
	title = {Firefly atlas of North America :},
	publisher = {Published in the U.S. by Firefly Books (US) ;},
	year = {2006.},
	address = {Buffalo, N.Y. :},
	note = {Relief shown by shading and spot heights. Depths shown by gradient tints and soundings.},
	url = {http://catdir.loc.gov/catdir/enhancements/fy0710/2007628071-b.html}
}