@book{206532,
	author = {Springer, A. M. and United States},
	title = {America by air},
	publisher = {NASA},
	year = {c2007.},
	series = {NASA SP},
	address = {Washington, DC.},
	note = {Shipping list no.: 2008-0102-P.},
	url = {http://purl.access.gpo.gov/GPO/LPS90779}
}